Cardinals failed again Thursday morning to find a successor to Pope Francis, sending black smoke billowing up through the Sistine Chapel chimney after two more inconclusive rounds of conclave voting.

The doors of the Sistine Chapel at the Vatican were closed on Wednesday, signalling the start of a secret conclave where 133 cardinals from around the world will elect a new pope. Latin chants and organ music had accompanied the cardinals as they processed into the frescoed chapel,

Black smoke has poured 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.