A mother who was injured in a head-on crash yesterday with her two children has died in hospital overnight.
Police said the 37-year-old woman was travelling with her two children when it collided with a Mazda 6 being driven by a 76-year-old man on Great Eastern Highway in Wundowie.
The woman and her children were pulled from the vehicle by a passing motorist, just before the car was engulfed in flames.
The woman, her two children and the elderly driver of the second vehicle were all injured in the collision.
The woman's 15-month-old girl remains in Princess Margaret Hospital in a stable condition, while her son, believed to be four or five, was not injured.
The man driving the second vehicle suffered chest injuries and is in a stable condition at Royal Perth Hospital.
The woman was taken to Royal Perth Hospital, but later died of her injuries.
The Great Eastern Highway was closed in both directions at Chedaring Road for several hours from 11am yesterday.