Russian missile ships have left the Black Sea, reports the Ukrainian navy. Currently, no ships belong to the arsenal of the Russian Federation in the Black Sea or the Sea of Azov. The Ukrainian navy reports on Telegram that Russian ships have left the Black Sea.

Russia continues to suffer military defeats in the strategically vital Black Sea, one of Moscow's most crucial avenues for political and economic influence into the Mediterranean and beyond. Newsweek has contacted the Russian Ministry of Defense for comment.

Russian investigators have determined that an oil spill from two tankers in the Black Sea last month was smaller than initially thought, the Transport Ministry said on Thursday.

Missile-toting drone boats blew up two Russian helicopters and damaged a third in a Black Sea skirmish. Why it matters: Ukrainian outlets said the shoot-downs were world firsts. Engagements like this — especially with video evidence — leave little room for drone warfare naysayers.

The Russian Black Sea Fleet was defeated in an encounter with a country practically devoid of warships. The key turned out to be essentially armed, remote-controlled Ukrainian watercraft, which continue to evolve.