Two men are being questioned in connection with an alleged assault in Sligo on Thursday in which a 60-year-old man was injured.
The man is being treated for serious head injuries at Sligo General Hospital. His condition is described as critical.
The incident happened at a house in Carton Point in Sligo town in the early hours of Thursday morning.
A 28-year-old man was arrested in connection with the alleged assault last night. He is being questioned at Ballymote Garda Station.
A 29-year-old man was arrested in Sligo this evening and is being held at Manorhamilton Garda station.
Gardaí have asked anyone with information to contact Sligo Garda Station on 071-9157071 or the Garda Confidential Line 1800-666111.