Francis presides at final Mass to conclude sex abuse summit

Pope Francis attends a penitential liturgy at the Vatican, Saturday, Feb. 23, 2019. The pontiff is hosting a four-day summit on preventing clergy sexual abuse, a high-stakes meeting designed to impress on Catholic bishops around the world that the problem is global and that there are consequences if they cover it up (Vincenzo Pinto/Pool Photo Via AP)

A survivor of sex abuse, who wished to remain anonymous, background right, plays violin after he delivered his testimony during a penitential liturgy attended by Pope Francis at the Vatican, Saturday, Feb. 23, 2019. The pontiff is hosting a four-day summit on preventing clergy sexual abuse, a high-stakes meeting designed to impress on Catholic bishops around the world that the problem is global and that there are consequences if they cover it up. (Vincenzo Pinto/Pool Photo Via AP)

Pope Francis is celebrating a final Mass to conclude his extraordinary summit of Catholic leaders summoned to Rome for a tutorial on preventing clergy sexual abuse and protecting children from predator priests.

The Mass was being celebrated Sunday in the Sala Regia, one of the grand, frescoed reception rooms of the Apostolic Palace.

Australian Archbishop Mark Coleridge was delivering the homily; Francis was to offer final remarks at the end of Mass.

Francis summoned 190 presidents of bishops conferences and religious superiors from around the world to attend the four-day meeting to impress upon them that clergy sex abuse and the cover-up of it is a global problem that threatens the very mission of the Catholic Church.