Two security staff have been taken to hospital after they were attacked outside Brighton Music Hall under the Kings Road Arches on the seafront.
Police arrived at the incident at around 8.40pm on Thursday, June 16th, to reports that both staff had been punched, one to the ground.
A video, taken by a member of the public and shared on Twitter, shows the attacker violently attacking both men, relentlessly punching them both, before two other men intervened, stopping the attack.
Police say a suspect has been identified from the video footage of the incident, and enquiries are ongoing to locate him for questioning.