A police and fisheries department investigation in Thailand has revealed that a ship docked at Bangkok Port, holding over 4,000 tonnes of tuna worth 250 million baht, may have been using illegal fish aggregating devices and was fishing in unauthorized waters. The devices are prohibited by the Western and Central Pacific Fisheries Commission due to their impact on dolphins and immature fish. The authorities have asked the Fisheries Department to prohibit the import of marine products from the vessel and have urged seafood processors to verify the legal origin of their raw materials to prevent the use of illegally caught fish.