The Vatican has offered to host any peace talks while continuing humanitarian efforts to facilitate prisoner swaps and reunite Ukrainian children taken by Russia.

"There was an exchange of views on some current international issues," between Vance and Archbishop Paul Richard Gallagher.

Pope Leo XIV has held "cordial" talks with US Vice-President JD Vance, according to the Vatican. It comes a day after Vance - a practicing Catholic - joined other dignitaries and thousands of worshipers at the Pope's inaugural mass on Sunday.