Authorities in Shanghai said Saturday they had impounded the large freight vessel owned by Japanese shipping giant Mitsui OSK Lines in a dispute over what the Chinese side says is money owed from the 1930s, when Japan occupied large swathes of its neighbour.
The two sides are embroiled in a territorial dispute over a small archipelago, as well as snapping at each other over differing interpretations of history.
"We have told the Chinese side through diplomatic channels that we regret its seizure of the vessel...We demand China take appropriate measures," Chief Cabinet Secretary Yoshihide Suga, the Japanese government's top spokesman, told reporters in Tokyo.
The ruling could "intimidate Japanese companies doing business in China", Suga said, adding that Japan was "deeply worried".
Also Read
Suga said yesterday that the ship's seizure undermines a 1972 joint communique that normalised ties between Japan and China, in which Beijing agreed to renounce "its demand for war reparations from Japan".
On Saturday, the Shanghai Maritime Court said it had seized the vessel "for enforcement of an effective judgement" made in December 2007.
Chinese and Hong Kong media said the seizure was related to a verdict by a court in Shanghai that said Mitsui must pay around 2.9 billion yen (USD 28 million) in relation to the leasing of two ships nearly 80 years ago.
Reports said that in 1936, Mitsui's predecessor Daido Shipping Co rented two ships on a one-year contract from Zhongwei Shipping Co.
The ships were reportedly commandeered by the Imperial Japanese Navy and were sunk during World War II.