Young girls, aged respectively 15 and 16 years, was at Heffron Park, Maroubra, when three young men approached them at about 22:20 local time.
One of the boys were then asked a young girl 15 years old mobile phones. Soon he was threatened and punched the face of the left that poor young girl. He then fell and when the friend she was going to help instead he was beaten with sticks, punched, and dropped to the ground.
Teenagers who are punching it captured in the apartment on Broome Street, Maroubra, one in the morning after the girl reported to police.
Inspector Sean Heaney at Maroubra Police said it would conduct further investigations while the teenager was released on bail and asked to be present at court proceedings child Bidura Children's Court, on 16 August.