A man is being questioned about an improvised explosive discovered on a bus bound for Dublin ahead of the Queen’s visit, gardaí said.
The suspect, aged in his sixties, is being quizzed after the device was found when the vehicle was searched in Maynooth, Co Kildare, west of Dublin, on Tuesday.
The man was detained by gardaí in Longford yesterday.
A Garda spokesman confirmed: “As part of the investigation into the discovery of an Improvised Explosive Device in Maynooth, Co Kildare, on the 16th May 2011 a male in his early 60s was arrested on May 20, 2011.
“Gardai in Longford working in conjunction with national units arrested the male in Longford. He is currently detained at Longford Garda Station.”
A massive security operation was mounted by the police with roads closed and large areas cordoned off amid the heightened dissident republican threat.
Several people were arrested for disorderly behaviour protesting against the Queen’s visit.
Yesterday she left Cork City after greeting ordinary people following a warm reception where crowds lined the streets to catch a glimpse of her on the first state visit to Ireland for a century.