UPDATE: POLICE will investigate whether the driver of a four-wheel drive towing a caravan which rolled on the Western Downs suffered a heart attack.
The male driver, 88, was pulled from the overturned vehicle after it rolled off the Warrego Hwy about 8km west of Miles about 4.40pm on Wednesday, with no major physical injuries.
However, the man was rushed to Miles Hospital a short time later suffering shortness of breath, a police spokesman said.
The man, from Wongaling Beach in far north Queensland, later died in hospital. His passenger, a 73-year-old woman, was not injured.
Initial Forensic Crash Unit investigations suggest the 4WD and caravan had been travelling west on the Warrego Hwy from Miles when it crossed onto the wrong side of the road.
When the driver tried to correct the vehicle, it overturned on the westbound lane which was closed to all traffic for more than five hours.
Queensland Fire and Emergency Services crews remained at the scene of the crash until 10pm.
EARLIER: A MAN, 88, has died over night after a fatal crash on the Warrego Highway yesterday afternoon.
The rollover happened just before 5pm about 8km west of Miles.
Initial reports suggest the 88-year-old Wongaling Beach veered his four-wheel drive vehicle onto the wrong side of the road, according to a Queensland Police statement.
Reports suggest the driver then tried to correct the vehicle, which was towing a caravan, before it overturned.
The driver was taken to Miles Hospital and passed away a short time later.
A 73-year-old woman was the only passenger and was not injured according to police.
The Forensic Crash Unit is continuing their investigation.