 The convoy next encountered two French fishing <unk> . Both crews were taken off and the ships sunk for fear they might report the composition and location of the convoy . At 17 : 00 the convoy received a signal from Commander @-@ in @-@ Chief Plymouth that five German torpedo boats were in the area . Two hours later another signal informed them that another two Hunt class destroyers , HMS Cleveland and HMS <unk> , had been dispatched at full speed to join the convoy . 
