Kyiv has called on Moscow to respond to the proposed ceasefire - the Kremlin says it is waiting to be briefed by the US.

The Kremlin said on Wednesday that it needed to be briefed by the United States on the outcome of U.S.-Ukrainian talks in Saudi Arabia before commenting on whether a proposed ceasefire in Ukraine was acceptable to Russia.

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.