NATO member Turkey changed its rhetoric to call Russia's assault on Ukraine a "war" on Sunday and pledged to implement parts of an international pact that would potentially limit the transit of Russian warships from the Mediterranean to the Black Sea.
Kyiv had appealed to Ankara to block any more Russian ships from entering the Black Sea, from which Moscow launched an incursion on Ukraine's southern coast. At least six Russian warships and a submarine transited Turkey's straits this month.
"It is not a couple of airstrikes now, the situation in Ukraine is officially a war... We will implement the Montreux Convention," Mevlut Cavusoglu, Turkey's foreign minister, said in an interview with broadcaster CNN Turk.
