First for breaking news and analysis: Compelling world news stories from NBC News journalists. Follow us on Twitter and Facebook.

A British zoo worker who was injured in a tiger attack at an animal park near Dalton-in-Furness has died, police said Friday.

Sarah McClay, 24, from the Barrow area, was attacked by a tiger within its enclosure Friday afternoon, Cumbria police said. The woman was taken by air ambulance to Royal Preston Hospital after the attack at the South Lakes Wild Animal Park, but she did not survive.

McClay had suffered head and neck injuries, the BBC reported.

Police are still investigating the circumstances that led to the attack.

"Sarah's family are very shocked and distressed and request that they have privacy as they try to come to terms with their loss," the police statement read.

The public was not at risk during the attack, officials said. The wildlife park, which, according to the BBC, opened in 1994 and has both Siberian and Sumatran tigers, closed early Friday.

Desmond Boylan / Reuters file

Mount Kanchenjunga, the third highest peak in the world with an altitude of 28,169 feet, is seen in this aerial view taken from a passenger aircraft flying over Nepal at a height of 30,000 feet. Five climbers are lost on the Himalayan range peak.

Five climbers including two Hungarians and a South Korean are missing on the world's third-highest mountain and feared dead, a mountaineering official said Friday. 

The five disappeared Monday on Mount Kanchenjunga, and bad weather was preventing a rescue helicopter from reaching their base camp. 

Mountaineering Department official Dipendra Poudel said Friday that the climbers were descending from the summit when they were believed to have slipped or fallen at an altitude of about 7,900 meters (25,900 feet). 

The Hungarians have been identified as Zsolt Eross, 45, and Peter Kiss, 27, while the South Korean climber is Namsoo Park, 47. The Nepalese guides have been identified as Phu Dorjee, 24, and Bibash Gurung, 25. 

Eross has scaled 10 of the 14 highest peaks in the world and was the first from his country to scale Mount Everest. 

Kanchenjunga is 28,162 feet high. 

U.S. authorities have arrested a man wanted in the murder of four members of a family in the Czech Republic, Czech police said on Friday.

The man, identified by police as Kevin Dahlgren, has been searched for since four bodies were found in a family house in the city of Brno, the nation's second-largest city about 120 miles southeast of Prague, on Wednesday evening.

"Kevin Dahlgren, charged with quadruple murder, was arrested last night," after landing in Washington D.C.'s Dulles International Airport, regional police chief Leos Trzil said on Czech Television.

Police investigator Antonin Hrdlicka said the pilots and crew of the flight from Vienna were informed that the suspect was onboard, the Associated Press reported.

Czech Television reported Dahlgren was a relative of the victims, a married couple and their two sons. 

The Facebook page in his name, set up only earlier this month, says he was from Palo Alto, Calif., and was offering English lessons in Brno.

LONDON -- The wife of a British soldier brutally murdered in broad daylight in London said on Friday that she thought he was safe in England after returning from active duty in Afghanistan.

Several of Drummer Lee Rigby’s relatives made an emotional, tear-strewn appearance at a news conference Friday, as dramatic video footage emerged showing the moments that police shot two men later arrested over the killing.

Rigby, 25, known as “Riggers” to his friends, was walking near an army barracks in Woolwich, South London, when he was killed on Wednesday.

At the news conference Friday, his father Ian, who did most of the talking as the others mostly appeared too upset to speak, said his son was a “hero” and “didn’t deserve this.”

Rigby’s wife, Rebecca, 30, spoke briefly and was clearly struggling to do so.

“I just want to say that I love Lee. I always will and I’m proud to be his wife,” she said.

“He was due to come up this weekend, so we could continue our future together as a family. He was a devoted father to our son Jack and we’ll both miss him terribly,” she added.

Later, she spoke of her shock at his death in England.

“You don’t expect it to happen when he’s in the U.K. You think they’re safe,” she said. “You know it’s dangerous when they go somewhere like that [Afghanistan] … he’s walked up and down that road so many times before.”

The new video footage was published by the Mirror newspaper, which it said showed the moments when police officers shot the two alleged attackers. It contains scenes that people may find disturbing.

In the video, shot from high above the scene, a man is seen running toward a police car, dropping something that looks like a knife. Two shots are heard and he falls to the ground.

Another man, not clearly visible beneath the trees, appears to hold out his arm toward the officers with something in his hand. A burst of three shots and then another are heard and he also falls to the ground. There are then two further shots.

Separate video footage taken before the police arrived showed a passerby talking to one of the men, who was carrying a large knife and whose hands were covered in blood. The passerby, Ingrid Loyau-Kennett, said she also saw a gun.

The two men were taken to hospitals in London for treatment and were later arrested.

At the family news conference, Ian Rigby said that when his son was born, he was “a precious gift” to the family.

“What can we say about Lee, our hero, we’re so proud of Lee,” his father said, struggling to compose himself.

He said Lee had a “fiery temper” when he was younger and he used to sit on his son while trying to calm him down, but when he got too big at about 15 “he used to sit on me.”

Ian Rigby said it had been his son’s dream when he was growing up to join the army.

“He was dedicated and loved his job. Lee adored and cared a lot for all his family and he was very much a family man, looking out for his wife, his young son Jack and his younger sisters, who in turn looked up to him,” he said. “He always had a banter [teasing and joking] with them, but would never ever let any harm come to them.”

The slain soldier had been “over the moon” at becoming a father and an uncle, his father said.

“Lee was a man who loved people. He had many friends growing up in Middleton [Greater Manchester] and on army duties all over the world, where he’d been sent,” he added. “He believed life was for living and he will be sorely missed by all who knew him.”

A statement by his sisters – read by Ian Rigby – said “rest in peace Lee, we loved you so much and you didn’t deserve this.”

“You fought for your country and did it well. You will always be our hero. We’re just upset you left us so early,” the statement added.

Ian Rigby read the last text that Lee Rigby had sent to his mother.

“Good night mam [mother], I hope you had a fantastic day today because you are the most fantastic, one-in-a-million mum that anyone could ever have wished for. Thank you for supporting me all these years. You’re not just my mum, you’re my best friend.”

He also read a poem for his son, that included the lines:

“Our family chain is broken,

And nothing is the same,

But as God takes us one by one,

Our chain will link again.”

Related:

• UK mom calms man with blood-soaked knife after suspected deadly terror attack
• PhotoBlog: Britons react with horror and anger to London attack
• 'Leave our lands': Man knifed to death in suspected London terror attack

A passenger jet heading from Pakistan to England was intercepted by U.K. fighter jets after an "angry passenger" made a bomb threat Friday, an airline official said.

The Boeing 777 was forced to divert from Manchester airport to London Stansted after a disruptive passenger told a flight attendant he would set off a bomb, said a senior Pakistan International Airlines official who asked not to be identified.

"It seems that the threat was passed in anger," the official said. "But we are still trying to figure things out."

The plane, from Lahore, was carrying 308 passengers and landed safely at London Stansted, the official said.

Police said two passengers had been arrested "on suspicion of endangerment of aircraft" - a criminal offense that includes everything from terror threats to misbehavior.

The two passengers who were arrested were identified by Pakistan International Airlines as Safdar Mahmood and Tayyab Subhani, both British nationals. Essex police did not confirm their identities, but confirmed they were British nationals who were ages 30 and 41.

The Royal Air Force Typhoon jets were scrambled after a security alert was sent to air traffic controllers by the passenger jet's pilots, British military officials said. 

They said fighter jets had been scrambled, but the explanation for the alert was not immediately known. 

"Typhoon aircraft from RAF Coningsby were launched today to investigate an incident involving a civilian aircraft within U.K. airspace; further details will be provided when known," the Ministry of Defence said in a statement.

No suspicious items have been recovered from the plane, Essex police said. The plane will remain at its current location for forensic examination by specialists. 

This story was originally published on Fri May 24, 2013 9:14 AM EDT

Fredrik Sandberg/Scanpix via Reuters

Firefighters extinguish a row of burning cars in the Stockholm suburb of Rinkeby Thursday after youths rioted for a fifth night.

STOCKHOLM - Police in the Swedish capital are to seek reinforcements after youths again set cars ablaze and threw stones at police for a fifth night running, officials said on Friday.

The unrest has led the United States embassy to warn U.S. citizens this week not to go to areas hit by rioting.

"I can confirm we have sent out a Warden message," embassy spokeswoman Danielle Harms said, referring to alerts by the Department of State with safety or travel information.

Around 30 cars were set on fire in poorer neighborhoods in northwestern and southwestern parts of the capital on Thursday night and rioters caused widespread damage to property, including schools, police said.

Despite Sweden's reputation for equality, the rioting has exposed a fault-line between a well-off majority and a minority, often young people with immigrant backgrounds, who cannot find work, lack education and feel marginalized.

"In terms of extent, it is a little less, a little quieter," police spokesman Kjell Lindgren said of the disturbances on Thursday night. Eight people, mostly in their early 20s, had been detained during the night.

He said police were planning to request reinforcements from other areas to help deal with the rioting, upcoming football matches and the wedding of Princess Madeleine, third in line to the throne, on June 8.

He said the police needed to be prepared to maintain a heavy presence on the streets. "We will do that for days, weeks, as long as it is necessary," he said.

The violence of recent days appears to have been sparked by the death in Husby - the centre of the rioting - of a 69-year old, shot by police earlier this month.

One recent government study showed up to a third of young people aged 16 to 29 in some of the most deprived areas of Sweden's big cities neither study nor have a job.

The gap between rich and poor in Sweden is growing faster than in any other major nation, according to the OECD, though absolute poverty remains uncommon.

Related:

Sweden stunned by third night of rioting

Sweden's happy, generous image challenged by four-day riot

Stefan Wermuth / Reuters

A worker walks past a British Airways passenger jet after it was towed off the runway following an emergency landing at Heathrow Airport west of London on May 24, 2013.

LONDON - Europe’s busiest airport was disrupted for several hours Friday after a British Airways plane made an emergency landing at Heathrow with a fire in at least one engine.

Thousands of travelers were delayed or diverted to other London airports following the incident, shortly after 8 a.m. local time (3 a.m. ET).

All 75 passengers were safely evacuated from the Airbus A319 using emergency chutes, but one of the airport’s two runways was closed for almost two hours and the other was also briefly shut.

Significant delays and disruption were expected for the rest of the day at Heathrow, and British Airways said it was canceling all its short-haul flights – to the UK, Europe and parts of north Africa – until 4 p.m. local time Friday (11 a.m. ET).

The stricken jet suffered technical problems as it took off for Oslo, Norway, and was forced to return for an emergency landing.

Eyewitnesses reported smoke billowing from the right hand engine as the jet made its approach over south-west London.

In a statement, British Airways said Flight BA762 had suffered a "technical fault," but fire officials said they had extinguished a blaze.

Amateur video of the aircraft in the air showed smoke coming from one engine, and a picture posted to Twitter by one of the passengers after landing showed the aircraft covered in fire-retardant foam. 

The incident will likely cause disruption for families getting away over the school holiday, which starts on Monday. Britain also has a public holiday on Monday, adding to the number of travelers using Heathrow.

"We were able to reopen the northern runway within two hours of the incident and we are now focused on returning the airport to normal as quickly as possible," Heathrow's duty manager Mark Freeman told Reuters.

David Wyllie, breakingnews.com, and Reuters, contributed to this report.

This story was originally published on Fri May 24, 2013 4:30 AM EDT

Ministry of Defence

Drummer Lee Rigby was identified Thursday as the soldier killed in London in a suspected terror attack on Wednesday.

The British soldier brutally killed in London in a suspected terror attack was a drummer in a military band who had served in Afghanistan, officials said on Thursday.

Lee Rigby, 25, known as “Riggers” to his friends, was killed in broad daylight on Wednesday as he walked in Woolwich, South London, near an army barracks.

In a statement, the U.K. Ministry of Defence said Rigby, who served with the 2nd Battalion The Royal Regiment of Fusiliers, was “a loving father” to his two-year-old son Jack.

“An extremely popular and witty soldier, Drummer Rigby was a larger than life personality within the Corps of Drums and was well known, liked and respected across the Second Fusiliers,” the statement said.

“He will be sorely missed by all who knew him. The Regiment’s thoughts and prayers are with his family during this extremely difficult time,” it added. “Once a Fusilier, always a Fusilier.”

The statement said Rigby was born in Manchester, England and had joined the army in 2006.

It said he had been deployed on operation in Helmand province, Afghanistan, in April 2009, “where he served as a member of the Fire Support Group in Patrol Base Woqab.”

Rigby had previously helped guard the U.K.’s royal palaces. “He was an integral member of the Corps of Drums throughout the Battalion’s time on public duties, the highlight of which was being a part of the Household Division’s Beating the Retreat - a real honour for a line infantry Corps of Drums,” the statement said.

He had also served with his unit in Cyprus and Germany. In 2011, Rigby began a recruiting post in London and assisted with duties at the Tower of London.

The commanding officer of the Second Fusiliers, Lieutenant Colonel Jim Taylor, said Rigby was “a dedicated and professional soldier.”

“Larger than life, he was at the heart of our Corps of Drums. An experienced and talented side drummer and machine gunner, he was a true warrior and served with distinction in Afghanistan, Germany and Cyprus,” he said.

His platoon commander from 2010 to 2011, Captain Alan Williamson said “Riggers” was a “cheeky and humorous man, always there with a joke to brighten the mood.”

Related:

• UK mom calms man with blood-soaked knife after suspected deadly terror attack
• PhotoBlog: Britons react with horror and anger to London attack
• 'Leave our lands': Man knifed to death in suspected London terror attack

Roger Vikstr / EPA

People gather at a protest against police violence and vandalism in Husby, northern Stockholm, Sweden, on May 22.

STOCKHOLM -- Hundreds of youths have torched cars and attacked police in four nights of riots in immigrant suburbs of Sweden's capital, shocking a country that dodged the worst of the financial crisis but failed to solve youth unemployment and resentment among asylum seekers.

Violence spread from the north to the south of the city on Wednesday as groups of youths pushed through Stockholm's suburbs casting stones, breaking windows and setting cars alight. Police in the southern Swedish city of Malmo said two cars had been set ablaze.

Local media said a police station office was set on fire in the southern suburb of Rågsved, where several people were also detained. No one was hurt and the fire was quickly put out.

The attackers have awaited nightfall before setting out, defying a call for calm from the country's prime minister and damaging stores, schools, a police station and an arts and crafts center in the four days of violence.

"I think there is a feeling that we need to be in more places tonight," said Towe Hagg, spokeswoman for Stockholm police. One police officer was injured in the latest attacks and five people were arrested for attempted arson.

Selcuk Ceken, who works at a local youth activity center in Hagsatra, said between 40 and 50 youths threw stones at police and smashed windows, then ran off in different directions. He noted the people were in their 20s and seemed well organized.

"It's difficult to say why they're doing this," he said. "Maybe it's anger at the law and order forces, maybe it's anger at their own personal situation, such as unemployment or having nowhere to live."

The riots appear to have been sparked by the police killing of a 69-year-old man wielding a machete in the suburb of Husby this month, which prompted accusations of police brutality. The riots then spread from Husby to other poor Stockholm suburbs.

"We see a society that is becoming increasingly divided and where the gaps, both socially and economically, are becoming larger," said Rami Al-khamisi, co-founder of Megafonen, a group that works for social change in the suburbs.

"And the people out here are being hit the hardest ... We have institutional racism."

The riots were less severe than those of the past two summers in Britain and France but provided a reminder that even in places less ravaged by the financial crisis than Greece or Spain, state belt-tightening is toughest on the poor, especially immigrants.

"The reason is very simple. Unemployment, the housing situation, disrespect from police," said Rouzbeh Djalaie, editor of the local Norra Sidan newspaper, which covers Husby. "It just takes something to start a riot, and that was the shooting."

Djalaie said youths were often stopped by police in the streets for unnecessary identity checks. During the riots, he said some police called local youths "apes."

The television pictures of blazing cars come as a jolt to a country proud of its reputation for social justice as well as its hospitality toward refugees from war and repression.

"I understand why many people who live in these suburbs and in Husby are worried, upset, angry and concerned," said Justice Minister Beatrice Ask. "Social exclusion is a very serious cause of many problems, we understand that."

After decades of practicing the "Swedish model" of generous welfare benefits, Stockholm has been reducing the role of the state since the 1990s, spurring the fastest growth in inequality of any advanced OECD economy.

While average living standards are still among the highest in Europe, successive governments have failed to substantially reduce long-term youth unemployment and poverty, which have affected immigrant communities worst.

Some 15 percent of the population are foreign-born, and unemployment among these stands at 16 percent, compared with 6 percent for native Swedes, according to OECD data.

Youth unemployment in Husby, at 6 percent, is twice the overall average across the capital.

Related:

Sweden stunned by third night of rioting

LONDON - A mother-of-two who confronted a blood-soaked, knife-carrying man in the moments after what is suspected to be the ideologically motivated murder of a British soldier said she wanted to protect onlookers.

Ingrid Loyau-Kennett, 48, jumped off the bus she was riding in southeast London Wednesday when she saw the man slumped on the sidewalk next to a crashed car.

British police said on Thursday that officers from London’s counter-terrorism unit were heading up the investigation. Eyewitness reports suggest the killing may have been carried out as a protest against British military actions in Muslim countries based on what they say they heard from the alleged attackers.

Loyau-Kennett had intended to offer first aid, but instead found herself standing in the aftermath of the horrific killing of a soldier in broad daylight in Woolwich, London.

The U.K. Ministry of Defence named the victim as Lee Rigby, a 25-year-old drummer with the Second Battalion, Royal Regiment of Fusiliers who was father of a two-year-old boy. and who had served in Afghanistan. Floral tributes were laid outside the military barracks near the scene.

“I saw a man on the road obviously injured and a car badly crashed," she told U.K. channel ITV on Thursday. "So I assumed it was a road accident."

However, she says when she got closer she saw a man covered in blood and carrying a butcher's knife. She also says she saw a handgun.

"I thought 'what the heck has happened there?'" she said.

“He was obviously a bit excited and the thing was to talk to him,” Loyau-Kennett said, adding that her instinct was to keep the suspected attacker calm in order to protect the crowd that was beginning to gather.  

ITV News

A suspect, left, talks to the camera immediately after Wednesday's attack.

Pictures at the scene show her, hands in pockets, speaking apparently calmly to a man holding a long knife.

Loyau-Kennett, from Cornwall, England, found it “daunting” to continue to engage the blood-soaked man as more bystanders appeared, in particular mothers with their children.

“There were more and more mothers with children coming by so it was more and more important that I talk to him,” she said.

British Prime Minister David Cameron paid tribute to her Thursday, saying she was "brave" as he pledged that U.K. investigators "will not rest until we know every single detail of what happened and we've brought all of those responsible to justice."

Speaking on the steps of 10 Downing Street, he said: "This country will be absolutely resolute in its stand against violent extremism and terror. We will never give in to terror."

"One of the best ways of defeating terrorism is to go about our normal lives. And that is what we shall all do."

A second alleged attacker, his hands covered in blood and holding a meat cleaver, was captured on video -- obtained exclusively by NBC News's U.K. news partner, ITV News -- telling passers-by: "By Allah we swear by the almighty Allah and we will never stop fighting you until you leave us alone."

Eyewitnesses described the victim of the attack as being chopped up like a "piece of meat."

The witnesses said two men were later shot by officers. The injured duo were taken to a hospital where they were later arrested in connection with the case.

NBC News understands the two suspects have been investigated by British security services in the past.

Two further arrests were made Thursday, Britain's Counter Terrorism Command announced. A 29-year-old man and a 29-year-old woman were taken into custody on suspicion of conspiracy to commit murder. 

The Muslim Council of Great Britain on Wednesday condemned the attack, which it said would "heighten tensions on the streets of the United Kingdom."

"This is a truly barbaric act that has no basis in Islam and we condemn this unreservedly," it said. "Our thoughts are with the victim and his family."

Those tensions were underlined late Wednesday when a small number of members of the anti-immigrant English Defence League extremist group were involved in minor scuffles with police in Woolwich.

In his statement to reporters on Thursday, Cameron said: "This was not just an attack on Britain - and on our British way of life - it was also a betrayal of Islam - and of the Muslim communities who give so much to our country. There is nothing in Islam that justifies this truly dreadful act."

However, on its English-language media Twitter feed, al Qaeda-linked Africa terror group al-Shabab said: "What Cameron describes as a sickening attack is what innocent Muslim woman and children are subjected to every day by British troops."

London Mayor Boris Johnson said it was "completely wrong" to blame the killing on Islam, saying the fault lies with the "warped and deluded" mindset of the people responsible. He said it was "equally wrong" to try to draw any link between the incident and British foreign policy.

He also called on the Londoners to send a message of defiance by carrying on "as normal" in the wake of the horrific attack.

Johnson was speaking to reporters after cycling to a meeting of the British government's emergency response committee, Cobra.

President Obama released a statement on the attack Thursday, condemning it "in the strongest terms."

"The United States stands resolute with the United Kingdom, our ally and friend, against violent extremism and terror.  There can be absolutely no justification for such acts, and our thoughts and prayers are with the family of the victim, the police and security services responding to this horrific act and the communities they serve, and the British people," the president said in the statement.

"Our special relationship with the United Kingdom is especially important during times of trial."

NBC News' Keir Simmons and Rohit Kachroo and ITV News' Darren Burn contributed to this report.

Related:

PhotoBlog: Britons react with horror and anger to London attack

'Leave our lands': Man knifed to death in suspected London terror attack

This story was originally published on Thu May 23, 2013 7:23 AM EDT