Pope Francis in Egypt

A photo from the Vatican newspaper L’Osservatore Romano shows Pope Francis greeting young people as he arrives to celebrate Mass in Cairo.

Pope Francis leads Mass at the Air Defense Stadium in Cairo.

The faithful listen to Mass led by Pope Francis at the Air Defense Stadium in Cairo.

Pope Francis waves to worshipers at the Cairo stadium.

Pope Francis waves as he arrives at Cairo’s Air Defense Stadium to celebrate Mass for Egypt’s tiny Catholic community.

The faithful cheer Pope Francis at Cairo’s Air Defense Stadium.

The faithful wait for Pope Francis to enter Cairo’s Air Defense Stadium.

A woman takes a balloon as she waits outside the stadium where the pope would celebrate Mass on Saturday.

The faithful line up to enter the Air Defense Stadium, where Pope Francis would lead Mass on Saturday.

A helicopter flies over Cairo’s Air Defense Stadium, where Pope Francis would celebrate Mass for Egypt’s tiny Catholic community Saturday.

Pope Francis with Coptic Pope Tawadros II during a visit to the St. Peter and St. Paul church in Cairo, which was targeted by a suicide bomb attack that killed 29 people in December.

Egyptian President Abdel Fattah Sisi, right, listens as Pope Francis delivers a speech during a meeting in Cairo.

Pope Francis lights a candle during a visit at the St. Peter and St. Paul church in Cairo.

Impact marks from a suicide bomb attack that killed 29 people dot the columns inside Cairo’s St. Mark’s Cathedral.

Pope Francis arrives to meet with Sheik Ahmed Tayebb, Grand Imam of Al Azhar Mosque in Cairo.

Pope Francis upon his arrival at Cairo’s International Airport as part of a two-day visit in Egypt.

Pope Francis speaks at the peace conference in Cairo hosted by Sheikh Ahmed Tayeb, right, grand imam of Al Azhar mosque.

A banner outside St. Mark’s Coptic Cathedral in Cairo, Egypt.