In this image taken from a video, a partial view of a British submarine downed off Sardinia during World War II. An Italian diver claims to have located the long-lost wreck of the British submarine HMS P311 that was downed off Sardinia during World War II. Diver Massimo Bondone told the La Nuova Sardegna daily that he found the P311 at a depth of 80 meters (262 feet) off the isle of Tavolara during a dive last weekend. (Massimo Bondone via AP)