2 Mar 2009 : Column 1369W Nuclear Submarines
Mr. Ancram: To ask the Secretary of State for Defence how many submerged collisions involving British nuclear submarines there have been since 2000. 
Mr. Hutton: Since 2000 the following incidents involving submerged Royal Navy submarines have taken place: HMS Superb in May 2008, HMS Tireless in 2003, HMS Trafalgar in 2002 and HMS Triumph in November 2000. HMS Tireless hit an iceberg while on Arctic patrol. The remainder were all grounding incidents. All the vessels, apart from HMS Superb, which was decommissioned in October 2008, were repaired and returned to service.