The Fremantle-based US Submarines GURNARD, LAPON, and RATON, sank four Japanese ships. GURNARD torpedoed the tanker TATEKAWA MARU, off Mindanao; LAPON torpedoed the transports WALES MARU and BIZEN MARU, off Saigon; and RATON sank the destroyer escort IKI, in the South China Sea.