the attack. The destroyer crews noted several underwater explosions after the last depth charge detonated, marking the end of the submarine, which sank at . Oil and debris later rose to the surface. No other Japanese submarine made contact with Task Force 58, and the submarine MacDonough and Stephen Potter sank probably was Ro-45. On 20 May 1944, the Imperial Japanese Navy declared her to be presumed lost off Truk with all 74 men on board. She was stricken from the Navy list on 10 July 1944. Some sources suggest that Ro-45 was sunk off Saipan in the Mariana Islands by the U.S. submarine on 20 April 1944, but that is incorrect because Ro-45 remained active after that date. Other sources incorrectly identify the Japanese submarine sunk on 30 April 1944 as , but I-174 was sunk on 12 April 1944. Notes References Ro-35-class submarines Kaichū type submarines Ships built by Mitsubishi Heavy Industries 1944 ships World War II submarines of Japan Japanese submarines lost during World War II World War II shipwrecks in the Pacific Ocean Maritime incidents in April 1944 Submarines sunk by United States warships Ships lost with all hands