A Northern Irish friend of murdered Real IRA faction leader Alan Ryan is recovering in hospital after being shot in the leg.
Declan Smith (30), a close associate of Ryan — shot dead last September — was found with a gunshot wound to his leg in a housing estate in Saggart, Co Dublin, early on Saturday.
Mr Smith, originally from Belfast, is understood to have been living in Dublin since 2007.
He was brought to nearby Tallaght Hospital and his injuries are not thought to be life-threatening.
The shooting was the second incident involving one of Ryan's friends in recent months and comes amid reports that Real IRA members from Northern Ireland have become increasingly active in its Dublin operations.
A man in his 30s was arrested in the hours after the shooting. A Garda spokesman said he was still in custody last night and could be held for up to 72 hours.
Nathan Kinsella (33) was shot in the knee and dumped in Ballyfermot, Dublin, last November.
The kneecapping is thought to have been carried out by Real IRA activists close to the leadership of a new terrorist alliance that has been formed in recent months.
Gardai believe Mr Kinsella was targeted because of his friendship with Ryan. The 32-year-old was gunned down on September 3 in Clongriffin, north Dublin. He had a paramilitary-style funeral.