The UK PM says there is a "viable chance" of a ceasefire between Russia and Ukraine ahead of Friday's US-Russia summit in Alaska.

Britain sought to keep Europe in the loop ahead of a U.S.-Russia summit on Ukraine with a highly publicized meeting between Keir Starmer and Volodymyr Zelensky.

Zelensky’s trip to the British capital comes a day after he took part in virtual meetings from Berlin with President Trump and the leaders of several European countries.