By Joshua McElwee, Crispian Balmer and Philip Pullella VATICAN CITY (Reuters) - White smoke rose from the Sistine Chapel and the bells of St. Peter's rang out on Thursday, signalling that cardinals have elected a new pope to succeed Pope Francis and take charge of the Roman Catholic Church.

Cardinals returned to the Sistine Chapel on Thursday to resume voting for a new pope and crowds flocked back to St. Peter's Square to await their decision, after the first conclave ballot failed to find a winner during a longer-than-expected voting session.

The conclave to select the next pope has begun after Catholic cardinals from across the world filed into the Sistine Chapel Wednesday before sealing themselves inside.