Pope Francis has approved a Catholic spiritual devotion centred in Medjugorje, a town in Bosnia that has been steeped in controversy over whether the Virgin Mary appears to local people, the Vatican said on Thursday.

The Vatican is providing its long-awaited assessment on one of the more contested aspects of Roman Catholicism in recent years: the reported “apparitions” of the Virgin Mary at an otherwise unremarkable village in southern Bosnia.

While the Vatican did not confirm that the Marian apparitions were real, it recognized that the devotion of the faithful to the site is undeniable.

The Vatican issued a long-awaited note on the alleged apparitions at Medjugorje, in Bosnia and Herzegovina. It did not say the apparitions were authentic but acknowledged spiritual fruit.

The Marian apparitions in Medjugorje stir considerable controversy among the faithful and those outside the Church. Some are convinced of the authenticity of the events, while others have significant doubts.

Catholic worshipers who claim to have seen and spoken to the Virgin Mary at a Bosnian landmark received mixed messages from the Vatican on Thursday after the Church refused to say whether their visions were real — while still supporting worship at the site.