Four teenage girls have been charged after a woman was threatened at knifepoint in Queen Street Mall overnight.
One of the teenagers, 16, had approached the woman, 23, outside the Hungry Jack's restaurant about 11.45pm and asked to use her phone.
The woman handed it over and when she asked for it back, three girls, all aged 16, allegedly shoved her and threatened her with a knife, police said.
The group ran from the scene and was found by police outside a convenience store on Edward Street a short time later.
The girls have been charged with robbery with violence.