The annual Mass is being held at St. Peter’s Basilica. The Vatican has been celebrating Christmas all week. According to Vatican Radio, the Pope delivered Christmas greetings to Vatican employees and their families on Thursday. The Pope also met with his predecessor Pope Emeritus Benedict XVI for an exchange of Christmas greetings.
Watch the Christmas Eve Mass live above at 3:15 p.m. ET on Dec. 24.
This article originally appeared on TIME.com