Pope Leo XIV celebrated his first Mass in the Sistine Chapel where he was elected less than 24 hours earlier, warning of the dangers caused by a lack of faith and hoping the Catholic Church could be a beacon lighting the world's "dark nights".

Pope Leo XIV, the first American leader of the Catholic Church, previously known as Robert Francis Prevost, returned to the Sistine Chapel the day after his election to deliver a mass for the College of Cardinals, where he described his role as both a cross to bear and a blessing and urged church leaders to make themselves “small.”