Pope Francis has used his first Christmas Day address to urge access for humanitarian aid in Syria, BBC News reports.
He told thousands of pilgrims in St Peter's Square in the Vatican to pray for a peaceful end to violence in Syria and other conflict zones.
The Argentine Pope also said tragic incidents involving migrants trying to reach Europe should not be repeated.
Christians around the world are celebrating Christmas, which marks the birth of Jesus Christ in Bethlehem.
It was the third successive year that the Syrian conflict had been a main focus of the Christmas speech, one of the addresses known as Urbi et Orbi.
"Too many lives have been shattered in recent times by the conflict in Syria, fuelling hatred and vengeance," said the 77-year-old pontiff. "Let us continue to ask the Lord to spare the beloved Syrian people further suffering."
He also called for peace in Iraq and a successful outcome in talks between Israelis and Palestinians.
Expanding on his concept of peace, Francis said: "True peace is not a balancing of opposing forces. It's not a lovely facade which conceals conflicts and division. Peace calls for daily commitment."
The BBC says the Pope also reached out to "non-believers", calling on them to join with people of faith in the pursuit of peace and a better world.
Conflicts in Africa were another focus of the Pope's address. He called the violence in the Central African Republic "often forgotten and overlooked" in a country "torn apart by a spiral of violence and poverty". He also urged an end to fighting in the Democratic Republic of Congo, and for "social harmony" in South Sudan.
In the light of attacks on some Christian communities in the Middle East, Africa and elsewhere, Francis said: "Lord of life, protect all who are persecuted in your name."