Three young women, aged 20, 20 and 21, were walking along the harbourside at 1.45am on December 21 when they were verbally abused by a girl walking past as part of a group of teens.
The teen allegedly threw a can at them.
Police then allege three teenagers then pulled the two 20-year-olds to the ground by the hair and kicked them in the face.
The 21-year-old tried to flee from the scene and call emergency services, but she was followed, pushed to the ground and kicked by the teens.
The two 20-year-olds were treated by paramedics before being taken to St Vincent’s Hospital. One had a broken nose; the other a broken finger.
They are due to appear at a children’s court today.
Police inquiries continue.