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.

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.

European leaders said a call with President Donald Trump was unifying and that he agreed Ukraine should be part of any negotiations over territory, but some still worry he could give in to Russian President Vladimir Putin.