A former Franciscan friar has been jailed for five years on two counts of indecent assault against a young boy.

A jury found Joseph Keegan, 79, of Somerville Avenue, Crumlin, Dublin 12, guilty of two counts of indecent assault on the child.

The first was for anally raping him on an unknown date in 1986 or 1987 at a church property in Dublin; and the second for sexually assaulting him after football training at a school in the capital on a date in 1985 or 1986.

He was in his mid-40s when he abused the boy, who was only nine or ten at the time.

The victim, who is now in his 40s, told Dublin Circuit Criminal Court that Keegan took him out of school one day to show him where he lived, and indecently assaulted him.

He also told the court of another occasion when he was indecently assaulted after Keegan "grabbed him" in a corridor at school after football training.

Seoirse O Dunlaing, BL for Keegan, said he had raised questions from the beginning of the case that there was a question over his client's fitness to stand trial because of his age and multiple medical conditions.

Judge Pauline Codd said she accepted that Keegan was at a low risk of offending due to his age and frailty.

She sentenced him to six years in prison on a charge of rape and four years for sexual assault to be served concurrently. She suspended the final year for both.