On the morning of 21 August, the Russians deployed a small missile ship to the Black Sea in addition to the submarine that was already there. The number of Kalibr missiles increased to 12, report the Southern Defence Forces via Telegram.
"The tension of the situation is predictable. The level of the missile threat is very high," the statement said.
The defence forces call to listen to air raid warnings and take responsibility for own safety.
On the morning of Sunday, 20 August, Russia deployed a submarine missile carrier armed with four Kalibr missiles to the Black Sea. In total, nine enemy ships were on alert.