 It was attacked by U-boats and torpedo bomber aircraft, and while no merchant ships were lost or damaged, the "Cassandra" was torpedoed by U-boat "U-365" under the command of Oberleutnant zur See Diether Todenhagen at 0600 on 11 December when about 165 miles north of the Kola Inlet, to which she returned, escorted by the 20th Escort Group, under tow.Sixty-two men died in the attack and "Cassandra" had her bow blown off.Leslie was awarded the OBE for his devotion to duty and actions during this incident.