The 7331-ton Hong Kong-registered "Jintian" issued a distress call late on Tuesday (January 24), the Japan Coast Guard said.

Media reported a person on the ship said it was listing and taking on water, and later reports said the 22 crew - all Chinese or Myanmar nationals - had transferred to lifeboats. There was no immediate word on what caused the vessel, which was carrying lumber, to capsize, but a Coast Guard spokesperson said winds were strong at the time.