Knox Highway Patrol officers are appealing for witnesses following a collision in Upwey on Monday 25 September.
It’s understood a black Suzuki sedan was travelling northbound along Main Street when it allegedly veered onto the wrong side of the road and collided with a blue Hyundai i30 sedan near Kia Ora Avenue just before 12pm.
The collision caused the Hyundai to crash into a power pole.
Three CFA units from Belgrave and Upwey, alongside SES responded to a vehicle incident in Upwey at around 11:54am 25 September.
Victoria Police and Ambulance Victoria were on scene.
The driver of the Hyundai, a pregnant 42-year-old Ferntree Gully woman was taken to hospital with non-life-threatening injuries.
The three-year-old passenger was taken to hospital as a precaution.
The driver of the Suzuki, an 18-year-old Tecoma man who holds a probationary driver’s licence, was taken to hospital for observation.
His passenger, a 17-year-old Belgrave boy, was taken to hospital with serious injuries.
Two other teenage passengers were not injured.
Incident was deemed under control at 12:04ppm and safe at 12:57pm.
All parties have spoken to police and investigations remain ongoing.
Investigators are keen to speak to any witnesses who saw the Suzuki prior to the collision or anyone that may have dash cam footage.
Anyone with information is urged to call Crime Stoppers on 1800 333 000 or log onto www.crimestoppersvic.com.au.