The Rocky Mountain Collegian

Issue date: 2/17/09 Section: News

Media Credit: Chris Bacon - Associated Press In this Oct. 25, 1992 file photo, sailors are seen aboard the HMS Vanguard, in Holy Loch, Scotland. Nuclear-armed submarines from Britain and France collided deep under the Atlantic Ocean earlier this month, causing damage to both vessels but releasing no radioactivity, a British official said Monday.

LONDON - Nuclear submarines from Britain and France collided deep in the Atlantic Ocean this month, authorities said Monday in the first acknowledgment of a highly unusual accident that one expert called the gravest in nearly a decade.

Officials said the low-speed crash did not damage the vessels' nuclear reactors or missiles or cause radiation to leak. But anti-nuclear groups said it was still a frightening reminder of the risks posed by submarines prowling the oceans powered by radioactive material and bristling with nuclear weapons.

The first public indication of a mishap came when France reported in a little-noticed Feb. 6 statement that one of its submarine had struck a submerged object - perhaps a shipping container.

But confirmation of the accident only came after British media reported it.

France's defense ministry said Monday that the sub Le Triomphant and the HMS Vanguard, the oldest vessel in Britain's nuclear-armed submarine fleet, were on routine patrol when they collided in the Atlantic this month.

It did not say exactly when, where or how the accident occurred.

France said that Le Triomphant suffered damage to a sonar dome - where navigation and detection equipment is stored - and limped home to its base on L'Ile Longue on France's western tip.

HMS Vanguard returned to a submarine base in Scotland with visible dents and scrapes, the BBC reported.

"The two submarines came into contact at very low speed," Britain's First Sea Lord, Admiral Jonathon Band, said. Band, Britain's most senior naval officer, offered no further explanation.

HMS Vanguard came into service in 1993, has a crew of around 140 and typically carries 16 Lockheed Trident D5 missiles.

Under government policy, British nuclear submarines carry a maximum of 48 warheads. At least one of Britain's four submarines is on patrol and ready to fire at any given time.

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