US President Donald Trump and Ukrainian President Volodymyr Zelensky held crunch war talks in the heart of the Vatican minutes before the start of the funeral of Pope Francis on Saturday, as the White House mounts an increasingly urgent push to strike a peace deal in Ukraine.

President Donald Trump says his meeting with Volodymyr Zelenskiy at the Vatican on Saturday went well and said the next few days will prove if there was progress in the Russia-Ukraine conflict. (Reporting By Steve Holland and Jarrett Renshaw;