Their conversation was the longest between the pope and a head of state since Francis’ meeting with President Obama in 2014.

It is the first time that a Vatican official has been condemned for such a crime.

“Walking, praying and working together: This is the great path that we are called to follow.”

The W.C.C. general secretary described Francis’ visit as “a strong signal of recognition by the Catholic world.”

The document outlines the church’s need to listen to young people, to help guide them in the faith and to identify pastoral paths to accompany them.

Pope Francis and Vatican diplomats have followed with growing concern the grave tensions and even threats of nuclear attacks that have been exchanged between the United States and North Korea.