In the Black Sea Russian patrol ship "Sharp-witted" was seen in the area Snake Island in the Ukrainian economic zone on 9 September that was expelled Ukrainian boats "Berdyansk" and "Ackermann".

Boats not yet in service with the Naval Forces of Ukraine and are running tests in the Black Sea, said, "The Duma. net ".

As reported, the incident with the "sharpness" occurred in the same area and on September 7, when the Ukrainian State Border Service ship was collecting evidence on the facts of aggression, seizure of objects and property of Ukraine and illegal industrial activity in regions of the Russian Federation and the Golitsyn Odessa gas field.

When approaching the specified fields ships and aircraft of the Armed Forces, in violation of universally recognized principles, norms and rules of international law carried out dangerous maneuvers than hinder the legitimate activities of the boundary ship. In addition, the "sharpness" have guided artillery system on the Ukrainian border ship.

After that, Snake district sent the Ukrainian Navy ships.