People take part in a Christmas midnight mass at Saint Catherine's Church, in the Church of the Nativity recognized by Christians to be the birthplace of Jesus Christ, in the West Bank City of Bethlehem, on Dec. 25, 2018. (Photos: Xinhua)

Palestinian President Mahmoud Abbas (3rd L) takes part in a Christmas midnight mass at Saint Catherine's Church, in the Church of the Nativity recognized by Christians to be the birthplace of Jesus Christ, in the West Bank City of Bethlehem, on Dec. 25, 2018.

Palestinian President Mahmoud Abbas (C) arrives for a Christmas midnight mass at Saint Catherine's Church, in the Church of the Nativity recognized by Christians to be the birthplace of Jesus Christ, in the West Bank City of Bethlehem, on Dec. 25, 2018.