Two men have been arrested and bailed after a fight near the Blue Note bar early on Sunday morning (1 November).
Police say it involved a small group of men and women on Broad Street at around ten past one, which led to several injuries.
One needed hospital treatment and has since been discharged.
A 33-year-old man was arrested on suspicion of affray and a 34-year-old man was arrested on suspicion of assault and affray.
Police want to speak to anyone who was there at the time - including the man who called them after seeing the fight.
Anyone with information should call police on 612612, Crimestoppers anonymously on 0800 555111 or via crimestoppers-uk.org.

Plans to charge wealthiest patients for medical travel
Railway Walk reopens 'several weeks' ahead of schedule
New bar opening at former Rojo and X site to evolve Jersey's nightlife
Former Chief Minister seeks re-election
Château Vermont to become home to new music campus
St Saviour break and entry suspect pictured posing on motorbike
'Overstretched' neurology department following under-experienced managers
Channel Islanders asked to report injured or dead seabirds