In Pictures: Pope Leo XIV's inauguration mass

Cardinals from around the world gathered at the Vatican for the first mass of Pope Leo's pontificate

The Pope greets invited guests during the mass

Filipino cardinal Luis Antonio Gokim Tagle puts the Fisherman's Ring on the Pope's finger

Tens of thousands of people gathered in St Peter's Square for the mass

People rest on the ground in St Peter's Square

Swiss Guards take up their positions in the square

A nun and other mass goers applaud as Pope Leo leads the mass in St Peter's Square

Ukrainian President Volodymyr Zelensky greets US Vice President JD Vance and his wife ahead of the mass

Pope Leo XIV made his first popemobile appearance ahead of his inauguration mass

President Michael D Higgins and his wife, Sabina, are shown to their seats in St Peter's Square

Following the mass, President Higgins and his wife met with Pope Leo