Chinese fishing boats are continuing to fish in waters off Japan, even after the discharge of contaminated water from the Fukushima Daiichi Nuclear Power Plant. The Asahi Shimbun used tracking systems to monitor and confirm the activities of many Chinese fishing boats in the North Pacific region, where saury, mackerel, and sardines are mainly caught. Despite China imposing an embargo on Japanese seafood, there is a concern that Chinese fishing boats have been selling fish caught in Japanese waters as Chinese products.