Investigation into what caused a serious crash in Dawesville this week are underway.
Police are urging witnesses to come forward who might be able to help with their investigation into a serious crash in Dawesville.
Around 8.30am on Thursday a white Honda Civic travelling along Dawesville Road ploughed into a tree near Ewing Street.
It's understood the 16-year-old driver lost control of the vehicle causing it to crash.
A 14-year-old girl in the back of the car received life-threatening injuries and was airlifted by the RAC rescue helicopter to Royal Perth Hospital.
The 16-year-old male driver also received serious injuries and was taken by ambulance to Royal Perth Hospital.
A second 14-year-old girl, who was the front passenger, was taken to Peel Health Campus with serious injuries.
Anyone with any information relating to the crash, or who saw the crash, or the Honda Civic prior to the crash, is urged to call Crime Stoppers on 1800 333 000 or report online at www.crimestopperswa.com.au
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