Leo, the first American and second Latin American pope, is holding his inaugural mass at the Vatican after waving to the faithful on the popemobile.

Cardinal Robert Prevost of Chicago will succeed Pope Francis as the leader of the Catholic Church. Prevost, the first American pope in history, will go by Leo XIV. Here's a look at the scenes across Rome and nearby countries after white smoke poured from the chimney.

Leo XIV, the first ever American pope, condemned the exploitation of the poor and called for unity in the church during his inaugural Mass in St. Peter’s Square, an event attended by world leaders, royalty and tens of thousands of believers.