Russian authorities say they have seized a Japanese fishing boat and taken it to a port in the Far Eastern province of Sakhalin.
They made the announcement on Friday. They accuse the vessel of operating inside Russia's exclusive economic zone.
They also say they fired warning shots and prevented it from escaping, and that they found different kinds of crabs onboard during an inspection.
The authorities say the vessel is at Korsakov port in southern Sakhalin.
The fishing boat is called Eihomaru. It belongs to a cooperative in the city of Wakkanai in Japan's northernmost prefecture of Hokkaido.
There were 14 crewmembers on board. The cooperative denies any violations, and is calling for their immediate release.
The cooperative says the boat was operating about 80 kilometers east of Cape Soya, and within Japan's exclusive economic zone.