Christian pilgrims from Nigeria pray inside the Grotto of the Church of the Nativity, traditionally believed by Christians to be the birthplace of Jesus Christ, in the West Bank city of Bethlehem on Christmas Eve, Thursday, Dec. 24, 2015. (AP Photo/Majdi Mohammed)

Christian pilgrims from Nigeria pray inside the Grotto of the Church of the Nativity, traditionally believed by Christians to be the birthplace of Jesus Christ, in the West Bank city of Bethlehem on Christmas Eve, Thursday, Dec. 24, 2015. (AP Photo/Majdi Mohammed)

BETHLEHEM, West Bank (AP) — Christian faithful from around the world descended Thursday on the biblical city of Bethlehem for Christmas Eve celebrations at the traditional birthplace of Jesus, as an outburst of Israeli-Palestinian violence dampened the typically festive mood.

Before the celebrations began, Israeli authorities said three Palestinians involved in attacks against Israelis were killed in violence across the West Bank. Another Palestinian was killed in clashes with Israeli troops, a Palestinian hospital official said.

Bethlehem has been a focal point for clashes between Israeli troops and Palestinian protesters during the three month-long wave of violence that has gripped the region. While the annual festivities in the city’s Manger Square were set to go on, other celebrations in the city were cancelled or toned down because of the violence.

Palestinian Christians celebrate the lighting of a Christmas tree in Manger Square, outside the Church of the Nativity in the West Bank town of Bethlehem, Saturday, Dec. 5, 2015. Christmas Eve is a major event for the biblical town, but Mayor Vera Baboun said the city would only decorate Manger Square this year. The holiday spirit will be harder to find after weeks of Israeli-Palestinian violence. (AP Photo/Majdi Mohammed)

Palestinian Christians celebrate the lighting of a Christmas tree in Manger Square, outside the Church of the Nativity in the West Bank town of Bethlehem, Saturday, Dec. 5, 2015. Christmas Eve is a major event for the biblical town, but Mayor Vera Baboun said the city would only decorate Manger Square this year. The holiday spirit will be harder to find after weeks of Israeli-Palestinian violence. (AP Photo/Majdi Mohammed)

“We’re in Bethlehem celebrating Christmas, celebrating the birthday of our lord Jesus Christ. This is the birthplace of the king of peace so what we want is peace,” said Rula Maayah, the Palestinian Tourism Minister.

Thousands of people were crowding into Manger Square, admiring the town’s Christmas tree and listening to holiday music played by marching bands and scout troops.

Since mid-September, Palestinian attacks have killed 20 Israelis, while Israeli fire has killed 124 Palestinians, among them 85 said by Israel to be attackers. The rest were killed in clashes with Israeli forces.

In recent years, Bethlehem had enjoyed a relative calm and thousands of revelers and pilgrims poured into Manger Square each Christmas. But vendors and hotel owners in the city have already complained of sagging business this Christmas season.

Latin Patriarch Fouad Twal led a procession from his Jerusalem headquarters into Bethlehem, passing through Israel’s concrete separation barrier, which surrounds much of the town. Israel built the barrier a decade ago to stop a wave of suicide bombings. Palestinians view the structure as a land grab that has stifled Bethlehem’s economy.

Twal will lead worshippers in a Midnight Mass at the Church of the Nativity, built atop the spot where Christians believe Jesus was born.