A juvenile who was being questioned in connection with a vicious assault in Limerick city earlier this week has been released without charge.
The 17-year-old was arrested on Wednesday by gardai who are investigating the attack which has left a man fighting for his life in hospital.
Patrick Byrnes Jnr (33), who is from Patrickswell, sustained serious head injuries when he was set upon at Lord Edward Street shortly after 3pm on Tuesday.
A second man in his early 20s and 19-year-old girl have also been questioned by gardai as part of the investigation, which is ongoing.
The victim - a father-of-three - is known to gardai and was only recently released from prison.
He was initially treated at the Mid Western Regional Hospital but was later transferred to Cork University Hospital, where he remains in a critical condition.
An incident room has been set up at Roxboro Road garda station, which can be contacted at (061) 214340.