Four people have died in separate crashes after a horror day on Queensland roads on Saturday.
A three-car crash at Landsborough, north of Brisbane, left one dead and two others in hospital.
Police said about 5.20pm a ute was travelling along Steve Irwin Way when it collided with the back of a stationary hatchback.
As a result of the initial impact, the hatchback was then involved in a collision with a car coming from the opposite direction.
An 86-year-old Glass House Mountains woman, a passenger in the car, died at the scene while the driver, a 67-year-old woman from the same suburb, was airlifted to hospital with serious injuries.
The driver of the hatchback, a 66-year-old Landsborough woman suffered non-life threatening injuries and the ute driver was not injured.
About three hours later, a 39-year-old man died after the vehicle he was driving rolled near Collinsville, 275 km north-west of Mackay.
The incident occurred about 8pm on Mount Wyatt Road and no-one else was injured.
Earlier on Saturday, a 67-year-old man died on the Bruce Highway at Marmor, between Rockhampton and Gladstone.
Police said the semi-trailer left the road about 3am near the intersection of Shields Road before catching fire.
Meanwhile a 21-year-old Mackay man died after hitting a power pole in north Queensland.
The victim crashed about 2am on Saturday morning while travelling along Shoal Point Road in Bucasia near Mackay and later died in hospital.
The Forensic Crash Unit was investigating all four incidents.
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