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.

Donald Trump and Volodymyr Zelensky met briefly in the hush of St Peter's basilica before Pope Francis's funeral on Saturday in their first encounter since a noisy White House clash and the US president later cast doubt on whether Russian leader Vladimir Putin wants a peace deal.

The US President has broken his silence after his face-off with Volodymyr Zelensky at Pope Francis' funeral, and turned on evil Vladimir Putin after the horror Russian air strikes on Kyiv