Police are investigating a fight between a group of men in the early hours of Monday morning.
It's thought two were fighting and another two got involved. The four are believed to have known each other.
A 19 year old needed hospital treatment.
It happened at 1.30am, near the Le Gallais car park on Hilgrove Street.
No one has been arrested.
Officers say other members of the public were in the area at the time and they want to speak to any witnesses.
The Police can be contacted on 612612 or the independent charity Crimestoppers anonymously on 0800 555 111 or via their Anonymous Online Form at Crimestoppers-uk.org