STORY: Major European powers threw their weight behind an unconditional 30-day Ukraine ceasefire on Saturday, with the backing of U.S. President Donald Trump, and threatened Russian President Vladimir Putin with "massive" new sanctions if he did not accept within days.

At a meeting in Kyiv… during which they held a phone call with Trump… the leaders of Britain, France, Germany, Poland and Ukraine set the start of the ceasefire for May 12.

Here’s Britain’s Prime Minister Kier Starmer: