European leaders are set to meet to coordinate the next steps on security guarantees for Ukraine after high-level talks in Washington, as diplomatic efforts intensify ahead of a possible trilateral summit involving Kyiv and Moscow.

The Ukrainian president says Monday's talks have been "constructive" as European leaders repeat calls for a ceasefire.

President Donald Trump is holding hastily arranged talks Monday with Ukrainian President Volodymyr Zelensky and a host of European leaders — a rarity at the White House — as he seeks to negotiate an end to Russia’s war in Ukraine.