Vatican City | Pope Leo XIV took his first popemobile ride through St. Peter's Square ahead of installation on Sunday, waving from the back of the open-back truck to the crowd waving flags and cheering “Viva il Papa!” The bells of St. Peter's Basilica tolled as Leo waved from the back of the truck that looped slowly through the square. The crowd cheered and plenty of Peruvian, American and Holy See flags mixed in with flags of other nations and banners.

Later on Sunday, Leo, history's first American pope, will be installed in a formal ceremony attended by presidents, patriarchs and princes. (AP)