A man is being held for questioning after a man in his late 30s died following a stabbing incident in Hollyhill on the northside of Cork city overnight.
Gardaí and paramedics were called to a property at Hollyville shortly after 4am.
The man received medical attention at the scene, and was transferred to Cork University Hospital where he later died as a result of his injuries.
The Office of the State Pathologist has been notified and a postmortem examination will be conducted on his body.
A man in his 50s has been arrested for questioning and is being held at a garda station in Cork under Section 4 of the Criminal Justice Act, 1984.
An investigation has been launched, and a family liaison officer has been appointed to assist the family of the deceased.
The scene has been sealed off, and a full forensic and technical examination of the scene will be carried out.
Gardaí are appealing to members of the public who may have any information to contact them.