Rubio, who led the American delegation to Tuesday’s talks in Saudi Arabia, said Washington would present the ceasefire offer to the Kremlin, which has so far opposed anything short of a permanent end to the conflict and hasn’t accepted any concessions.

While both countries claim they want peace, there's previously been significant differences between what Kyiv and Moscow have said they'd be prepared to agree to, and there's still plenty that needs to happen before fighting stops.

Secretary of State Marco Rubio said the ball was in Russian President Vladimir Putin's court after agreeing to a temporary ceasefire in Ukraine.