President Volodymyr Zelensky is due to meet Donald Trump's Ukraine envoy Keith Kellogg today as the rift between the two leaders deepens
It comes after the US president calls Zelensky a "dictator" and says Russia holds "the cards" in peace negotiations because it has "taken a lot of territory"
Ukraine's foreign minister says he has already met Kellogg and discussed "just, and lasting peace"
Anthony Zurcher analysis: Trump is echoing Russia's talking points about the war and the Ukrainian president, a week after a lengthy phone call with Putin
Western officials say a "lighter touch reassurance force" could be sent to Ukraine to help people feel safer if there's a ceasefire. But the Kremlin says sending Nato troops to Ukraine is "unacceptable"
