Black smoke rose from the Vatican's Sistine Chapel on Wednesday, signalling Roman Catholic cardinals had not agreed on a pope to succeed Benedict on their first full morning of voting in the secret conclave.
Cardinals held an initial ballot on Tuesday and held two more on Wednesday morning, with the black smoke showing that both were inconclusive, to the disappointment of crowds gathered in the nearby St Peter's Square.
Another two rounds were due to be held in the afternoon. The 115 cardinals will remain sequestered in the Vatican until they elect the church's 266th pontiff. When they agree on a pope, white smoke will rise from the chimney and the bells of St Peter's basilica will peal to announce it.