Emergency services responded to a two-vehicle crash involving a car and a bus on Hills Road in the suburb of Edgeware this evening.
St John was notified of the incident at 5:34pm and dispatched two ambulances and one rapid response vehicle to the scene.
Three people have been assessed with moderate injuries and are currently receiving treatment at the site.
The incident remains active, and it is not yet confirmed whether any of the patients will require transport to hospital.
There are no indications of road closures in the area at this stage.