It is believed to have been one of those fired at HMS Royal Oak by a German U-boat in 1939. A total of 833 men were killed in the naval disaster. The seven metre (22ft) long torpedo was found ...

Wreaths were also laid above the wreck of HMS Royal Oak to mark the 75th anniversary of its sinking. The warship was torpedoed by a German U-boat while it was at anchor in Scapa Flow in Orkney.