Secretary of State Marco Rubio said Friday that the U.S. would walk away from efforts to broker a ceasefire between Russia and Ukraine if progress isn't made within days.

Diplomatic teams from Ukraine and the United States are holding talks in Jeddah, Saudi Arabia, on Tuesday in steps toward ending a full-scale war started by Russia in 2022.

Catch up on key developments and the latest in-depth coverage of Russia's invasion of Ukraine.

Catch up on key developments and the latest in-depth coverage of Russia's invasion of Ukraine.

Relations between the two countries have collapsed over the Ukraine war, with the U.S. slapping thousands of sanctions on Russia, and militarily, economically and diplomatically supporting Ukraine.

Catch up on key developments and the latest in-depth coverage of Russia's invasion of Ukraine.