Baku, March 14 (AZERTAC). Pope Francis, 76, appeared on the central balcony of St. Peter's Basilica just over an hour after white smoke poured from a chimney on the roof of the Sistine Chapel to signal 115 cardinal electors had chosen him to lead the world's 1.2 billion Roman Catholics.

"Pray for me," the new pontiff, dressed in the white robes of a pope for the first time, urged the crowd, smiling warmly.

The choice of Bergoglio, who is the first Latin American and first Jesuit pope, was announced by French cardinal Jean-Louis Tauran with the Latin words "Annuntio vobis gaudium magnum. Habemus Papam" ("I announce to you a great joy. We have a pope.")

Francis has became the 266th pontiff in the Church's 2,000-year history at a time of great crisis, with the church under fire over a child sex abuse scandal and torn by infighting in the Vatican bureaucracy.

Jubilant Argentines poured into churches, some crying and praying, after the announcement at the Vatican. "This is a blessing for Argentina," one woman shouted on a Buenos Aires street.

"I hope he changes all the luxury that exists in the Vatican, that he steers the church in a more humble direction, something closer to the gospel," said Jorge Andres Lobato, a 73-year-old retired state prosecutor.

Although a conservative, Francis is seen as a reformer and was not among the small group of frontrunners identified before the election. The Jesuit order to which he belongs was founded in the 16th century to serve the pope. It is best known for its work in education and the intellectual prowess of its members.

Bergoglio is known as a humble man who leads an austere and sober life without ostentation, travelling by public transport and living in a small apartment outside Buenos Aires.

He is a moderate who is willing to challenge powerful interests and is deeply concerned about the social inequalities in Argentina and elsewhere in Latin America. He has had a sometimes difficult relationship with President Cristina Fernandez and her late husband and predecessor Nestor Kirchner.

Francis has spoken out strongly against gay marriage, denouncing it in 2010 as "an attempt to destroy God's plan".

He was born into a middle-class family of seven, his father an Italian immigrant railway worker and his mother a housewife.

Replacing Pope Benedict, who resigned last month, he overturned one of the main assumptions before the election, that the new pope would be relatively young.

Bergoglio is the oldest of most of the possible candidates and was barely mentioned in feverish speculation about the top contenders before the conclave.

He is the first non-European pope since Syrian-born Gregory III in the eighth century, and the third successive non-Italian pontiff.

The Vatican said his inaugural mass would be held on March 19.