Saint John Police are looking into a fight early Friday night morning outside a business on Prince Edward Street.
Police were told two women were fighting and a security guard was assaulted by a man after he tried to break up the fight.
Arriving officers found a large crowd outside the building and three people were arrested.
Two 18-year-old women have since been released from custody.
One is looking at charges of causing a disturbance, three counts of assaulting a peace officer and resisting a peace officer.
The other woman was charged with causing a disturbance.
A 22-year-old man is facing three charges including assault, resisting a peace officer, and assaulting a peace officer.
All three are due in court at a later date.
Anyone with information on the fight is asked to contact Saint John Police Force (506) 648-3333.
To pass on information anonymously, call Crime Stoppers at 1-800-222-8477.