A man in his late 20's sustained head injuries in the incident.
Gardai are continuing their investigations into an attack on Patrick Street yesterday afternoon in which a man was attacked stabbed in the head just outside the Savoy.
The man, who is in his late 20s was taken to Cork University Hospital where his injuries were described as not life threatening.
The man sustained his injuries after a row broke out with another man outside the Savoy around 3.30pm.
Gardai are examining CCTV footage in a bid to identify the culprit and they also cordoned off the area for a technical examination.