 One torpedo damaged the 10,552 ton armed merchant cruiser , which was towed back to England for repairs.Another damaged the 7,522 ton British merchant ship "Hatarana" so badly that she was abandoned by her crew of 108 and was scuttled by gunfire from the corvette .The final two torpedoes struck the 6,318 ton Dutch cargo ship "Balingkar", sinking her within 15 minutes with the loss of two men from her crew of 93.