The Catholic archbishop of Washington, D.C., Cardinal Robert McElroy, on Wednesday removed a well-known priest as an exorcist of the archdiocese after he made public comments suggesting that UFO sightings were the work of demons.

The archbishop said Rossetti’s statements “linking UFOs to demonic presence and the Center’s recent use of social media gravely undermine the Church’s very precise teaching on the devil, demons and exorcism.”

“It’s my personal belief that probably many if not most of these UFO sightings are in fact demons,” Rossetti added.