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

The Kremlin said the 72-hour ceasefire would run from the start of May 8 to the end of May 10, and Russia called on Ukraine to join it as well.

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.