Pope celebrates mass of 'mercy' with prisoners, refugees
The service was held in a church just off St Peter's Square, in front of a reduced congregation of about 80 people, due to coronavirus restrictions.
Among them, there were inmates of two Roman prisons and one youth detention centre, refugees from Syria, Nigeria and Egypt, and nursing staff from a nearby hospital.
In his homily, the leader of the world's 1.3 billion Catholics stressed the importance for Christians of serving others.
"Sister, brother, do you want proof that God has touched your life? See if you can stoop to bind the wounds of others," he said.
"Let us not remain indifferent. Let us not live a one-way faith, a faith that receives but does not give... Having received mercy, let us now become merciful," Francis added.
The pope, who is 84 and was vaccinated for the coronavirus ahead of his trip to Iraq in early March, did not wear a face mask during the service.
Those who did readings from the bible were also unmasked, while everybody else in the church, including altar boys and other priests, had their masks on.