Mass was held in St. Peter’s Basilica hours before 133 cardinals began the conclave to select the man who will replace Pope Francis as the next pontiff.

The new Pope, who has yet to be announced, was selected by a group of 133 cardinals, the highest number ever convened for a papal conclave.

Black smoke was pouring out of the Sistine Chapel chimney, indicating no pope was elected on the first ballot of the conclave to choose a new leader of the Catholic Church