The U.S. military said on Thursday a blast on Sunday near a UNESCO world heritage site in Yemen's capital city of Sanaa was caused by a Houthi missile and not an American airstrike.

Talks between the U.S., Ukraine and European officials to discuss ending Russia's war in Ukraine faltered as Secretary of State Marco Rubio abruptly cancelled his trip to London.

Zelenskyy on Tuesday ruled out ceding territory to Russia in any deal before talks set for Wednesday in London among U.S., European and Ukrainian officials. “There is nothing to talk about. It is our land, the land of the Ukrainian people,” Zelenskyy said.