A 15-year-old Mandurah girl has been charged over an aggravated armed robbery at a McDonalds in Perth's north.
Police say an 18-year-old woman was walking back to her car, which was parked at McDonalds in Beechboro on Sunday night.
When she got into her car a girl allegedly entered the rear of the vehicle and demanded the victim exit the car.
Two more girls allegedly forced the victim to exit the vehicle before they all assaulted her.
She was taken to Royal Perth Hospital for treatment.
Two 15-year-old girls, one from Lockridge and one from Mandurah, and a 16-year-old girl from Perth, have been charged with aggravated armed robbery.
They are due to appear before the Perth Children’s Court today.