Ukrainian President Volodymyr Zelenskyy says proposals negotiated with US officials on a peace deal to end his country's nearly four-year war with Russia could be finalised within days, after which American envoys will present them to the Kremlin before further possible meetings in the United States next weekend.

U.S. officials say Washington has agreed to give Ukraine security guarantees in peace talks

Mr. Zelenskyy told reporters late Monday that a draft peace plan discussed with the U.S. during talks in Berlin earlier in the day is “very workable”.

He cautioned, however, that some key issues — notably what happens to Ukrainian territory occupied by invading Russian forces — remain unresolved.

U.S.-led peace efforts appear to be picking up momentum. But Russian President Vladimir Putin may baulk at some of the proposals thrashed out by officials from Washington, Kyiv and Western Europe, including postwar security guarantees for Ukraine.