China's seizure over the weekend of a containership owned by shipping giant Mitsui O.S.K Lines for its failure to respond to a wartime compensation order related to a contractual dispute has raised concerns in Japan that further assets may be confiscated if more rulings favor Chinese plaintiffs.

The container vessel was seized Saturday at a port in Zhejiang province, Shanghai municipal authorities said Sunday.

The seizure appears to mark the first time that an asset belonging a Japanese company has been seized over litigation related to wartime compensation.