Niagara Regional Police are looking for footage of an argument that happened in St. Catharines earlier this week.
Officers were called to St. Paul St. and James St. around 3 a.m. Sunday for reports of a disturbance.
They found two men with head and facial injuries.
Police say their investigation revealed that the victims and assailants knew each other from a previous argument that had occurred earlier that night on St. Paul St.
They say there were a number of witnesses to this earlier incident and some may have recorded what happened.
Anyone with information or who captured the disturbance is asked to contact Niagara Police at 905-688-4111 ext. 9533.