WYNNEWOOD, Pa. (AP) — Latest developments in Pope Francis' visit to the United States. All times local:

9:15 a.m.

Pope Francis has met with survivors of clerical sex abuse and has promised to hold accountable those responsible.

Francis announced that he had met with a group Sunday, his final day in the United States.

Speaking to U.S. bishops, Francis said sexual abuse can no longer be kept a secret. He says he promised to "zealously" protect young people and that "all those responsible are held accuontable."

Francis has decided to create a new Vatican tribunal to prosecute bishops who failed to protect their flock by covering up for pedophile priests rather than reporting them to police.

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9 a.m.

Pope Francis is greeting seminarians on his way to a chapel where he will address bishops from around the world.

Francis is speaking to about 300 bishops and others Sunday in a chapel at the St. Charles Borromeo Seminary in Lower Merion, just across the border from the city.

The pope stayed the night at the seminary after spending Saturday in Philadelphia on the final weekend of his trip to the U.S.

Pope John Paul II visited the seminary in 1979. It has also welcomed Mother Teresa and three cardinals who later became pope, including Cardinal Joseph Ratzinger, who became Pope Benedict XVI.

Francis will travel to a prison in Philadelphia later Sunday morning and then celebrate Mass in front of a crowd estimated at more than 1 million Sunday afternoon.

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8:25 a.m.

From across the country and around the world faithful Catholics are gathering for the final day of Pope Francis' first visit to the United States.

Pilgrims are packing subway cars and lugging bags and portable chairs as they make their way to Philadelphia's Benjamin Franklin Parkway, where Francis will celebrate an afternoon Mass that could draw a million people or more.

Before the Mass, Francis is scheduled to visit a Philadelphia prison where he will speak with inmates, members of their families and corrections officers.

On Saturday, Francis spoke on religious freedom and immigration at Independence Hall and attended a festival with musical performances from Andrea Bocelli, Aretha Franklin and others for the World Meeting of Families.