Black smoke rose for the second time from the Sistine Chapel chimney on Wednesday, signalling that cardinals have not yet agreed on a successor to Pope Francis.

The secretive papal conclave continues into its second day, with up to four votes held daily until a two-thirds majority is reached.

Crowds are gathering in St. Peter’s Square, watching for the white smoke that will announce a new pope.

Cardinals Pietro Parolin and Luis Antonio Tagle are seen as frontrunners to lead the Church after Pope Francis’s death last month at age 88.