Mohamed Dahir / AFP - Getty Images, file

An armed Somali pirate keeps vigil on the coastline near Hobyo, northeastern Somalia, in January, 2010.

Europe's naval force patrolling off the coast East Africa said on Tuesday it had attacked Somali pirate installations on land, the first time it had conducted such an action since extending its remit from strictly to sea-based operations. 

Initial reports indicated that there were no casualties during the operation, which happened earlier on Tuesday, according to the European Union Naval Force (Somalia) Operation Atalanta's website.

"We believe this action by the EU Naval Force (NAVFOR) will further increase the pressure on, and disrupt pirates' efforts to get out to sea to attack merchant shipping and dhows," the commander of the EU Naval Force, Rear Admiral Duncan Potts, said in a statement. "The local Somali people ... many of whom have suffered so much because of piracy in the region, can be reassured that our focus was on known pirate supplies and will remain so in the future."

The action was conducted from the air and "at no point did EU Naval Force 'boots' go ashore," the statement said.

Arms race? Somali pirates, tankers up their game

The European force, which is trying to stamp out piracy off the coasts of lawless Somalia, is made up of around 1,400 military personnel, nine warships and five maritime surveillance aircraft, according to NAVFOR's website. 

Despite successful efforts to quell attacks in the Gulf of Aden, international navies have struggled to contain piracy in the Indian Ocean and Arabian Sea owing to the vast distances involved.

Fighting Somali pirates with science

Seaborne gangs have raked in an estimated $150 million in ransoms in what has become a highly organized, international criminal enterprise, security analysts say. Somali pirates in the failed state have carried out more than 800 attacks on ships, from private yachts to oil supertankers since 2008, Bloomberg reported. 

Interactive: Global piracy 

On March 23 the EU Council decided to allow its forces in the region to take "disruption action against known pirate supplies on the (Somali) shore."

"Putting pressure on their business model by destroying their boats and eliminating their fuel dumps will make life more difficult for the sponsors of piracy and the pirates themselves," the Council said in a statement. 

Reuters contributed to this report. 

More world news from msnbc.com and NBC News:

• Vatican allows mobster to be exhumed as cops seek clues in teen's disappearance
• Mexico's drug war: No sign of 'light at the end of the tunnel'
• Now towering over London: 'The Godzilla of public art'
• France's 'Monsieur' Normal takes office ... unmarried
• Too busy to put the kids to bed? Try 24-hour daycare
• Outrage over anti-Muslim materials in military training
• 88,000-mile voyage? Plastic card found after 33 years
• Bad neighbors for Team USA? Occupy camp axed

Follow us on Twitter: @msnbc_world