Police are appealing for information after an alleged fight outside Alfonso's café in the area of Bath Street.
It apparently involved three men, with one of them suffering minor injuries.
One of those involved is described as around 23 or 24 years old with short brown hair.
He was wearing all black and carrying a black backpack.
Officers think two people who were inside the café recorded the fight on their phones. Police want to speak to them.
The incident allegedly happened yesterday (2 August) at around 6pm.
Anyone who saw, or has footage of, the fight is asked to call police on 612612 or Crimestoppers anonymously on 0800 555 111.