President Trump "wants to see a permanent ceasefire first, to stop the killing, stop the bloodshed," press secretary Karoline Leavitt said.

It is the second time in less than two weeks that the Russian president has called a halt to fighting without committing to a long-term end to the war.

MOSCOW (Reuters) -Russian President Vladimir Putin on Monday declared a three-day ceasefire in the war with Ukraine next month to mark the 80th anniversary of the victory of the Soviet Union and its allies in World War Two.