Updated at 7:01 a.m. ET: A passenger jet flying from New York to Moscow made an emergency landing in Iceland on Thursday after a caller claimed there was a bomb on board, a spokeswoman for Russian airline Aeroflot said.

Fridthor Eydal, the manager at Reykjavik's Keflavik International Airport, told NBC News the Airbus A330 with 253 passengers on board landed safely at 6:27 a.m. (2:27 a.m. ET) and the plane had been evacuated.

"There was an anonymous call saying that there was an explosive device on the plane, which was already in the air," spokesman Irina Dannenberg said.

The call was made to the New York City police, Dannenberg told the ITAR-Tass news agency.

Passengers were going through standard security procedures on the ground in Reykjavik and would later be transported to a nearby hotel, local police told NBC News.

Police planned to search the aircraft later Thursday, authorities said.

Second plane searched
Emergency teams also searched an airplane in the city of Voronezh, 300 miles south of Moscow, for explosives on Thursday after an anonymous phone call was made to the city's airport, but no bomb was found, state-run RIA reported.

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A suicide bomb blast in the international arrivals area at Moscow's Domodedovo airport in January 2011 killed 37 people. Islamist insurgents in Russia's North Caucasus claimed responsibility.

Suicide bombers identified as women from the North Caucasus blew up two planes on domestic Russian flights nearly simultaneously in August 2004, killing all 90 people aboard.

NBC News' staff, Reuters and The Associated Press contributed to this report.

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Cem Ozdel / EPA

Turkey's Prime Minister Recep Tayyip Erdogan addresses members of parliament from his ruling AK Party during a meeting at the Turkish parliament in Ankara, Turkey, on Tuesday.

Turkey’s prime minister said Tuesday that his country would offer all possible support “to liberate the Syrians from dictatorship,” as NATO condemned Syria for shooting down a Turkey military jet.

Prime Minister Tayyip Erdogan said Turkey – a member of NATO – had changed the rule of engagement for its military and would now respond to any violation of the Syrian border.

Turkey would not engage in war-mongering, but the attack on the reconnaissance jet, which was deliberately targeted, would not be left unanswered, Erdogan said in a speech to his ruling AK Party deputies in parliament.

“However valuable Turkey's friendship is, its wrath is just as strong. Don't take our common sense and cautious approach as a sign of passivity,” Erdogan said, according to Turkish newspaper Zaman.

“The Syrian administration is tyrannical and not just. Turkey will be in solidarity with our brothers in Syria until a new regime is in place,” he added. “Turkey will be in solidarity with our brothers in Syria until a new regime arrives.”

“We will offer all the possible support to liberate the Syrians from dictatorship,” Erdogan said.

Turkish border a crucial link in Syrian conflict 

Meanwhile, ambassadors of NATO's 28 member states met in Brussels on Tuesday to consult with Turkey on the incident after it called for the meeting.

Turkey seeks NATO action over Syria jet downing

"NATO allies have expressed strong condemnation of this completely unacceptable act," NATO Secretary-General Anders Fogh Rasmussen said after the gathering.

Report: Syrian general, dozens of other soldiers defect to Turkey

Rasmussen said NATO security was "indivisible", but he said NATO's Article 5 -- which calls for member states to see an attack on one country as an attack on all the alliance's members -- had not been discussed.

"We stand together with Turkey in spirit of solidarity," he said.

Reuters contributed to this report.

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Turkey on Sunday called for an extraordinary meeting of NATO  after one of its planes was shot down by Syria in international airspace – an incident condemned by Britain as “outrageous.”

Turkey insisted the plane had mistakenly strayed into Syrian territory andwas not on a spying mission. It filed an official protest note to Damascus.

State-run TRT television reported that Foreign Minister Ahmet Davutoglu had called the meeting for Tuesday over article 4 of the NATO charter concerning Friday's incident.

The article says member countries "will consult together whenever, in the opinion of any of them, the territorial integrity, political independence or security of any of the parties is threatened."

The wreckage of the plane was discovered in the Mediterranean on Sunday at a depth of 3,281 feet, TRT reported. The pilots still have not been accounted for.

NATO spokeswoman Oana Lungescu said the North Atlantic Council, the principal political decision-making body within the military alliance, would meet in Brussels on Tuesday to discuss the incident.

"Turkey has requested consultations under Article 4 of Nato’s founding Washington Treaty,” she told Reuters.

U.S. Secretary of State Hillary Clinton condemned the jet downing as "brazen and unacceptable" and vowed close U.S. cooperation with Turkey to promote a political transition in Syria.

Britain's Foreign Secretary William Hague said Sunday that he was "gravely concerned by the Syrian regime's action in shooting down" the plane, and said Davutoglu had told him no warning was given.

Turkey: Syria's downing of military jet cannot be ignored

"This outrageous act underlines how far beyond accepted behavior the Syrian regime has put itself and I condemn it wholeheartedly," Hague said in a statement. "The Assad regime should not make the mistake of believing that it can act with impunity. It will be held to account for its behavior. The UK stands ready to pursue robust action at the United Nations Security Council."

Hague met last week with U.N and Arab League special envoy Kofi Annan for talks on plans for an international summit, while British officials discussed the issue in Geneva on Saturday with members of Annan's team.

"This deplorable incident underlines the urgent need to find a solution to the current crisis in Syria in order to bring an end to the violence and to achieve a genuine political transition," Hague said.

Davutoglu said earlier Sunday that the jet was downed in "international airspace" after it mistakenly strayed into Syria, but the plane was not on a spying mission. He said the plane had entered Syria on Friday, but quickly left when warned by Turkey.

The plane had no "covert mission related to Syria," Davutoglu said, adding that it was purely on a training flight to test Turkey's radar capabilities.

Davutoglu said the plane was shot down one mile inside the airspace several minutes after it left Syria.

Syria on Saturday insisted the shooting was "not an attack," and that the plane had violated its airspace.

The Associated Press and Reuters contributed to this report.

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Updated at 8:50 a.m. ET: Turkish President Abdullah Gul said on Saturday it was not possible to ignore the fact that Syria had shot down a Turkish military jet and said everything that needed to be done following the incident would be done, Turkish media reported. 

Gul said it was routine for jets travelling at high speed to cross borders for a short distance. He said an investigation into the incident would look at whether the plane was downed in Turkish airspace, media reported. 

Gul also said Ankara had been in telephone contact with Damascus and that a search operation for the plane and missing pilots was still under way. 

"It is not possible to cover over a thing like this, whatever is necessary will be done," Gul was quoted as saying by state news agency Anatolia.

Faruk Celik, Turkey's Labor and Social Security Minister, said Turkey would retaliate "either in the diplomatic field or give other types of response." 

"Even if we assume that there was a violation of Syria's airspace — though the situation is still not clear — the Syrian response cannot be to bring down the plane," Celik told reporters. "The incident is unacceptable. Turkey cannot endure it in silence." 

Syria said Friday its forces had shot down a Turkish military plane that entered its air space. The plane, an unarmed F-4, went down in the Mediterranean Sea about 8 miles away from the Syrian town of Latakia, Turkey said. 

It was initially reported to be a fighter jet, but Turkish Deputy Prime Minister Bulent Arinc said Saturday it was a reconnaissance aircraft, state television TRT reported. 

The incident further escalated tensions between Syria and NATO-member Turkey. The two neighbors used to be allies before the Syrian revolt began in March 2011 but Turkey has become one of the strongest critics of the Syrian regime's brutal response to the country's uprising and is playing host to civilian and military Syrian opposition groups. 

'Necessary' action will be taken
Gul said that Turkey was still trying to establish the exact circumstances of the incident but said jets flying at high-speeds would at times violate other countries' air spaces for short periods of time. 

"These incidents are routine," Gul said. "They are incidents that are not ill-intentioned and happen because of the speeds (of the jets)." 

"Was that the case, or did (the incident) occur in our own air space, these facts will emerge," he said. "No one should have any doubt that whatever (action) is necessary will be taken." 

Gul did not elaborate on what those steps would be. But Turkey said after a border shooting incident — which killed two people inside a Turkish refugee camp in April — that it would call on its NATO allies to intervene should it feel that its security was being threatened. 

Syrian coast guards joined Turkish coast guards in their search for the jet's two missing crew members for a second day on Saturday, Turkey's private NTV reported. Some pieces of the wreckage had been found, Gul said, without elaborating. 

Late Friday, Syria's state-run news agency, SANA, said the military spotted an "unidentified aerial target" that was flying at a low altitude and at a high speed. 

"The Syrian anti-air defenses counteracted with anti-aircraft artillery, hitting it directly," SANA said. "The target turned out to be a Turkish military plane that entered Syrian airspace and was dealt with according to laws observed in such cases." 

Syria claimed the jet violated its air space over territorial waters, penetrating about 0.62 miles. It said Syria forces realized that it was a Turkish jet after firing at it. 

On Saturday, a top-selling Turkish newspaper, Hurriyet, accused Syria of "Playing with Fire" in its banner headline, while Vatan newspaper said Syria would "pay the price" for the attack.

Reuters and The Associated Press contributed to this report.

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MOUNT SALAK, Indonesia -- Clearer weather finally allowed Indonesian helicopters to land Saturday and retrieve some remains of the 45 people aboard a Russian-made plane that crashed into a volcano during a demonstration flight.

Investigators still have found no sign of the black box recorder that might explain why the new Sukhoi Superjet-100 slammed into Mount Salak about halfway through a 50-minute flight intended to woo potential Indonesian airline buyers on Wednesday.

Search teams who climbed the dormant volcano's near-vertical slopes have been struggling to retrieve remains of the victims, and helicopters were unable to land because of thick fog shrouding the mountain about 50 miles southwest of Jakarta, the capital. All those aboard the flight are now presumed dead, and the plane's shredded wreckage is scattered around the dense jungle.

Helicopters brought four body bags with remains to Jakarta early Saturday morning for identification, search and rescue agency spokesman Gagah Prakoso said.

"We also have deployed a team to find the black box, but so far it had yet found," Prakoso said.

Col. Anton Chastila, a police forensic doctor in Jakarta, said his team has received the remains, adding it was unclear how many victims they represent.

About 60 forensic experts will sort through the body parts piece by piece and take DNA samples to identify them, Chastila said.

Indonesian rescuers find bodies near wreckage of jet that 'fell' from sky

Wednesday's demonstration — locally known as a "joy flight" — was mostly carrying representatives from Indonesian airlines, which are rapidly expanding to serve a burgeoning middle class in the sprawling archipelago where air travel between islands is a quicker alternative to ferries.  

Just 21 minutes after takeoff from a Jakarta airfield, the Russian pilot and co-pilot asked for permission to drop from 10,000 feet to 6,000 feet. They gave no explanation, disappearing from the radar immediately afterward.

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It was not clear why the crew asked to shift course, especially since they were so close to the 7,000-foot volcano, officials have said.

The Superjet is Russia's first new model of passenger jet since the fall of the Soviet Union two decades ago and was intended to help resurrect its aerospace industry.

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