Three women and a man are being questioned by detectives investigating the murder of a man outside his parents' home in Limerick.
Around 50 armed officers were involved in a number of early morning raids in the city, and seized drugs and ammunition.
The three were taken in for questioning over the killing of Noel Crawford (40), a father of six, in the O'Malley Park area of Southill last December.
They are also being questioned over the attempted abduction of a woman in O'Malley Park hours before the murder.
Gardaí believe Mr Crawford's murder was a case of mistaken identity.
PA
