Turkey will stop Russian warships from passing through the Black Sea, according to Ukrainian prime minister Volodymyr Zelenskiy.
In a tweet, Zelenskiy said that the country had pledged military and humanitarian support for Ukraine.
Turkey will stop warships passing through the Dardanelles and Bosphorus straits, which connects the Black Sea to the Mediterranean.
On Thursday 13 Ukrainian soldiers were killed on the small rocky Snake Island in the Black Sea when bombarded by a ship and by air.
