British nuclear submarine collided with floating object.

HMS Tireless, which was reported to be on patrol in the Arctic when the collision occurred, has returned to Faslane naval base on the Clyde, in Scotland, for repairs. The submarine, which was commissioned in 1986 and had subsequent refits in 1996 and 1999, suffered minor damage to her ballast tank during the collision. There was neither injury to the crew nor radioactive discharge reported. Tireless is one of seven 4,750-ton nuclear powered Trafalgar Class submarines, based in Devonport, Plymouth.