It happened seven decades ago. A Tribal-class destroyer was mooring in the Malta Grand Harbour when a German aircraft attacked and sank it. It's not too extraordinary to dive a boat's wreck which sank during the WW II but the HMS Maori was in the fleet which chased and sank the Bismarck in 1941. It was one of the boats which rescued the few survivors. The wreck was in the harbor of Valletta and blocked the traffic of the boats. They raised and scuttled it, later it was sank close to the shore.
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