Pope Francis is expected to address the International Peace Conference in Cairo at the end of April.
ISIS claimed responsibility for a rocket fired from the Sinai on Monday.
A Vatican official said Egypt has promised to do all it can to protect the leader of the Catholic world.
Pope calls the Syrian chemical weapons attack an "unacceptable massacre."
The pontiff is visiting an area in northern Italy that was hit with earthquakes in 2012.
The pope's recent suggestion that the Catholic Church discuss celibacy vows harks back to an earlier version of church practice.
Pope Francis met with Rwandan President Paul Kagame at the Vatican on Monday.
"Work gives us dignity," Pope Francis said.
Roman Catholic church head says bible reading will help people resist daily temptations.
Pope Francis was the victim of a poster campaign by critics who see him as tacking too far to the left.
The posters, which surfaced overnight, were quickly covered up by city authorities.
'Being afraid or rejoicing beforehand because of something that might happen is, in my view, quite unwise,' pope says.
The move will be a gesture of goodwill to a controversial figure, according to a Duterte aide.
In his year-end message, the pontiff says 'we have condemned our young people to have no place in society.'
Roman Catholic leader warns against a world in which "the lights of commerce cast the light of God into the shadows; when we are concerned for gifts, but cold toward those who are marginalized."
At least 34 people in Congo have been killed in protests since Monday, a human-rights researcher has claimed.
The Rwandan government dismissed an apology offered by Rwandan bishops as "profoundly inadequate."