Police are now investigating the incident, which they say began with a physical confrontation between two men who knew each other, and then escalated.

The men who were taken to hospital were treated for injuries such as lacerations, a broken nose and a concussion.

One man is still in hospital, but is expected to be released later today.

Police responded to the incident, where 12 people were arrested for behaviour-related offences that took place after police arrived on the scene.

The incident took place about 3.20am around Morrison Street.

There were a large number of witnesses and police have appealed to those witnesses to contact Crime Stoppers on 1800 333 000.