Gardaí investigating the murder of Polish national Mikolaj Wilk have released three men who were arrested on Tuesday.
All three were released without charge and a file will be prepared for the Director of Public Prosecutions.
Mr Wilk, 35, was killed by a gang at his home in Ballincollig, Co Cork last June.
Mr Wilk's wife, Elzbieta, had to undergo extensive surgery for defensive wounds to her hands and arms sustained during the attack.
