Russia and Ukraine carry out largest prisoner exchange; Kyiv says there is no ‘plan B’ to win the war

Russian air defense systems blocked an attack on Crimea on Thursday, the Russian Defense Ministry said in a Telegram

. Ten Ukrainian missiles were destroyed over the occupied peninsula, the post said.

CNBC was not able to independently verify the reports.

It comes after reports of attacks from Ukraine on Russian-occupied Crimea earlier in the week as a series of retaliatory strikes between the…