Police were called to Commercial Road at 9.30pm after reports of a man sustaining injuries in a fire.
It is believed the 28-year-old was injured when a tent was deliberately set alight.
The man has been taken to hospital with serious but non-life-threatening injuries.
Two people have been arrested in connection with the incident and remain in custody while inquiries into what happened take place.
Officers would like to speak to anyone who may have any information about this incident.
Witnesses or anyone with information can call police on 101 or Crimestoppers anonymously on 0800 555111.