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.

Zelensky used the funeral of Pope Francis to launch a diplomatic blitz to head off a U.S. proposal to end Russia’s war on Ukraine on terms favorable to Moscow.

The office of Zelensky shared a picture of Trump and Zelensky engaged in conversation at St. Peter’s Basilica.