In todays paper (Calgary Canada) a article describing a Dive Boat was found off the coast of Belgium, still sealed with 29 bodies on board, damage to front end and tower had been presumably damaged by a mine. no other details were given
They don't 'know' about bodies, but it is the presumption as the hatches appear closed. They are keeping the location a secret but as it's at 30m, it probably won't be long before someone starts bringing bits up. The U-boots entered the sea via Ostende which is why the British tried to block the port.