A World War II "hellship" may have been found, with some reports indicating that the wreck of the Oryoku Maru, a Japanese transport ship, has been located in Subic Bay. However, other reports suggest that a US World War II submarine has been found off the Japanese coast, creating uncertainty about which ship has been discovered. Artifacts have been recovered from a wreck in Subic Bay, but the exact identity of the ship is unclear.