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.

Russia said on Monday it was waiting for a signal from Ukraine regarding Kyiv's willingness to hold direct negotiations to end the war, but said it did not so far see any signs of movement. The Kremlin said last Friday that the possibility of direct talks between the two sides had been raised during a three-hour meeting between President Vladimir Putin and U.

Kyiv is working with allies on security guarantees akin to NATO's mutual protection pledge, Ukraine's president Volodymr Zelensky has said. Officials from Ukraine and allies the U.S., the U.K., France and Germany met in London on Thursday in a week when a peace proposal was produced which outlined an Article 5-like agreement which would be backed by Washington.