Update: A man who died following an assault at a pub in Mitchelstown last night has been named locally as Patrick O'Donnell.
The 36-year-old father of four lived in the locality.
Mr O'Donnell died following an incident at Willie Andies Pub at New Square in Mitchelstown at around 11pm last night.
There was an altercation at the premises between Mr O'Donnell and another man. He collapsed after the assault and was pronounced dead at the scene.
A man in his 20s has been arrested and gardaí are appealing for anyone with information to contact them.
Earlier: Gardaí make arrest after man dies in assault in Co. Cork
A man has died after being assaulted in Cork last night.
It is understood the incident happened at Willie Andies Pub at New Square in Mitchelstown at around 11pm.
Emergency services attend the scene but the man in his 30s died a short time later.
His body will be taken to Cork University Hospital for a post mortem after the State Pathologist carries out a technical examination.
Another man in his 20s has been arrested and taken to Fermoy Garda station where an incident room has been set up.
Gardaí are appealing for witnesses, and detectives have also gathered CCTV footage from the pub.
It is believed the venue was quite busy at the time as a local festival was taking place in New Market Square.
An incident room has been set up at Fermoy garda station and gardaí are appealing for witnesses to contact them on 025-821-00.