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.

U.S. Special Envoy Steve Witkoff arrived in Moscow on April 25, where he is expected to meet Russian President Vladimir Putin, the Interfax news agency reported. Witkoff's trip follows a mass missile attack on Ukraine overnight on April 24,