The Catholic Archbishop of Adelaide has been found guilty by Australian courts of concealing child sexual abuse in the 1970s.

Archbishop Philip Wilson is the most senior church official in the world to be charged and convicted of the offence.

He is accused of covering up the abuse of altar boys by a paedophile priest colleague in New South Wales.

He has denied being told about the abuse by some victims. He will be sentenced in June and faces a maximum two-year jail term.