Submarine found by Italian diver thought to be British WWII boat

An Italian diver claims to have located the long-lost wreck of the British submarine HMS P311, which was downed off Sardinia during the Second World War.
Diver Massimo Bondone told the La Nuova Sardegna daily he found the P311 at a depth of 80 metres off the isle of Tavolara during a dive last weekend.