“We are watching him, we accompany him and we understand that any provocation is possible at any time, at any moment,” RIA Novosti quotes Shoigu as saying on the Russia 1 TV channel.

He noted that in this way there is a constant check of the Russian Armed Forces in the Black Sea.

Earlier, the Russian Ministry of Defense reported that the forces and means of the Black Sea Fleet began to control the actions of the US Navy's headquarters ship Mount Whitney and the American destroyer USS Porter, armed with cruise missiles. 

The State Duma also commented on the activity of American warships in the Black Sea.