Killarney Gardaí say they are aware of an alleged assault on the former Bishop of Kerry Bill Murphy.
The incident took place on August 6th on a Killarney – Dublin train.
A spokesperson for the Diocese of Kerry says the unfortunate incident has been reported to the Gardaí.
A man in his 30s is alleged to have approached Bishop Murphy and punched him in the face.
A statement from the Diocese says the incident has also been brought to the Designated Liaison Person for Safeguarding Children in the Diocese of Kerry.