He has called on God's guidance - during his inaugural mass outside St Peter's Basilica.
Pope Leo XIV's inauguration mass is under way at the Vatican
He has called on God's guidance - during his inaugural mass outside St Peter's Basilica.
History's first American leader of the Catholic Church was presented with the pallium , a strip of lambswool representing his role as a shepherd.
He was also given the Fisherman's Ring, in honour of the first pope, Saint Peter.
It is understood, the Vatican said that the Pope will have a private meeting with Ukrainian President Volodymyr Zelensky this afternoon.
Mr Zelensky is among hundreds of world leaders who attended the mass this morning.
Tens of thousands of well-wishers gathered in St Peter's Square - to hear his homily.

Sharp Rise In M9 Collisions With Garda Call-Outs Up Year-On-Year
Councillor Seeks Clarity On How Often Nightclubs and Late Bars In Naas Are Inspected For Fire Risks
New Figures From CSO Reveal How Much International Protection Applicants Earn Compared To Average Worker In Ireland
Unpaid Eight-Month Work And Training Placement For Adults With Disabilities Branded "Extremely Unfair"
Department Of Education Defends Kildare SNA Cuts Amid Claims Of Reduced Need At Some Schools
Naas Nurses Threaten Escalation As Staffing Row Deepens
Driving Tests Face Disruption As RSA Testers To Strike Next Week
Jury Delivers Not Guilty By Reason Of Insanity Verdict In Ballyfin Demesne Strangling Case