Moscow’s forces are three miles from Dnipropetrovsk, a province they have never invaded. If they cross in, the advance would be a morale blow to Ukraine and complicate any territorial negotiations.

Russian President Vladimir Putin's invasion of Ukraine three years ago has turned into Europe’s largest conflict since World War II.

Russia and the United States have had their first meeting since the start of the Ukraine war, aimed at restoring relations and preparing the ground for ending the conflict.