Gardaí are investigating an incident at Lower Main Street, Letterkeny on New Years Night.
It’s understood that a fight broke out at a premises in the area in the early hours of yesterday morning.
A man in his is 30s was arrested for breaches of the public order act and taken to Letterkenny Garda Station, where he was later released.
A file will is being prepared for the DPP.
Any witnesses to the incident are being asked to contact Letterkenny Garda Station.