North Korean authorities insist that it is illegal while Russian and Russian sailors are being held by Russian shipping vessels.

Russia's Fisheries Agency said it was transported to Wonsan Port after being caught in a North Korean border guard warship while fishing vessel "Shang Hai Rin 8" departed from Sokcho port in Korea.

In the meantime, he emphasized that North Korea's detention is illegal.

International law permits navigation through exclusive economic zones, and the fishing boat was sailing out of the North Korean territorial waters.

Built in 2015, the No. 8 ship of Russia is a 180-tonne fishing boat with a length of 37m and a width of 7m. It is owned by the Northeast Fishery Company registered in the Russian Far East Sakhalin.