Pope Francis formally installed as Bishop of Rome

Pope Francis was formally installed as the Bishop of Rome today in a ceremony, in which he used his arrival at St John in Lateran Basilica to honour a past pope who still remains popular in Rome.

Francis arrived a half-hour early to bless a plaque renaming a corner of the piazza outside the church after Pope John Paul II, who died in 2005.

"It is with joy that I am celebrating the Eucharist for the first time in this Lateran Basilica, the Cathedral of the Bishop of Rome. I greet all of you with great affection," Francis said in his homily.