Geelong Crime Investigation Unit detectives have charged three people following two carjackings in the southeast suburbs of Geelong on Monday.
It is alleged two males and a female entered a parked car in High Street, Belmont just after 4pm on 1 July.
The trio allegedly produced a knife before demanding the 24-year-old male inside the car to drive.
They were driven to Woods Road, St Albans Park where they approached a second car about 4.30pm.
Investigators were told the group allegedly assaulted a woman inside the second car before fleeing the scene in her white Suzuki Vitara wagon.
The 18-year-old woman sustained slash wounds during the incident and was taken to hospital in a non-life-threatening condition.
The male victim did not sustain any physical injuries.
A 24-year-old man of no fixed place of abode was arrested on 3 July.
He has been charged with aggravated carjacking, false imprisonment and assault causing injury.
He will appear at the Geelong Magistrates' Court on 7 August.
A 20-year-old man of no fixed place of abode was also arrested on 3 July.
He has been charged with the same offences, as well as possess a drug of dependence.
He will appear at the Geelong Magistrates' Court on 5 July.
A 17-year-old Wandana Heights girl was arrested yesterday.
She has also been charged with aggravated carjacking, false imprisonment, assault causing injury and possess a drug of dependence.
She will appear at a children's court today.
The Suzuki remains outstanding.
Anyone with information is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential report online at www.crimestoppersvic.com.au
