In March 1944 Peleus was travelling from Freetown to Buenos Aires in ballast under the command of her captain, Minas Mavris. On this trip she had a crew of 35 men, mostly Greek, but also British, Chinese, Egyptian, and four others. On the evening of 13 March 1944 she was spotted by U-852, which was en route to her patrol area in the Indian Ocean. Despite the secret nature of U-852’s mission, her captain Heinz-Wilhelm Eck decided to attack the Peleus; tracking her until nightfall, U-852 closed with her target on the surface and fired two torpedoes at close range. Peleus was hit, the first exploding in the number two hold, the second just aft in the number three hold. She quickly broke up, sinking in three minutes; all that was left of her was flotsam, including several liferafts, and the survivors of her crew, perhaps half their number. Eck took two men aboard for interrogation, Agis Kefalas, the Third Officer, and Pierre Neuman, a seaman; having established her name and details, he returned them to their raft. At this point Eck decided he must hide the evidence of his action by destroying the debris, including the life-rafts. For the next five hours, until 1 A.M. on the 14th, U-852 moved around the debris field, firing with her guns, small arms and grenades. Despite these efforts, not all the wreckage was destroyed, and four of the crew survived, though one, Kefalas died later of a wound in his arm. The other three survivors were Antonios Liossis, Chief Officer, Dimitrios Argiros, a seaman, and Rocco Said, a stoker. After drifting for over a month, they were rescued on 20 April by the Portuguese vessel Alexandre Silva and taken to Lobito, in Angola. The incident was reported to British naval authorities, and affidavits taken from the three men. The following month U-852 was attacked and captured after running aground upon a reef in the Indian Ocean, on 2 May 1944; the surviving members of her crew were taken prisoner. At the end of the war, in October 1945, five members of her crew were tried as war criminals and convicted. Three were executed, and two others, Hans Lenz, Chief Engineer, and Wolfgang Schwender, Pilot, were imprisoned. Gwyn Griffin's best-selling 1967 novel An Operational Necessity was based on the Peleus Incident.