Gardaí arrest four men and one woman over murder of Aidan 'The Beast' O'Driscoll
Gardaí have arrested five people in relation to the murder of former RIRA commander Aidan 'The Beast' O'Driscoll.
The 37-year-old was ambushed and killed in Cork on December 7.
There have been a number of previous arrests and the investigation is ongoing, gardaí confirmed.
Sources said four men and one woman were arrested and are being questioned at stations in Cork.
Forty detectives at Watercourse Road Garda Station iare investigating the killing, which was carried out on a busy street in the Blackpool area of the city.
O'Driscoll was the former chief of staff of the RIRA and was involved in a number of feuds with Dublin gangs.
He was Alan Ryan's boss while the Donaghmede-native launched an extortion campaign against the city's drugs gangs.
A senior garda source said they believe O'Driscoll fell victim to a power struggle within the dissident republican ranks in Cork, with the former chief of staff also being targeted because of personal feuds with a number of other RIRA men.
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"This was a very carefully planned murder because of the manner in which the killers fled from the scene," said the source.
Up to four vehicles were used in the getaway, two of which, a Nissan Almera and Vauxhall Astra van, were found burned out on Redemption Road in the city and at Killeens a couple of hours after the shooting.
A third vehicle, an Opel Astra, was only found shortly before Christmas in a remote ravine in Nadd.
A fourth was used by the killers to flee from Nadd, possibly a Toyota Avensis. Gardai also suspect a motorcyclist may have operated as a spotter for the gunmen.
Two weapons - a sawn-off shotgun and a US-made Colt semi-automatic pistol - were seized from a property on the Old Commons Road in Cork only hours after O'Driscoll was killed.