A MAN has suffered serious head injuries after an alleged road rage attack northwest of Toowoomba.
Dalby police is seeking any witnesses to the incident which left the 45-year-old Jimboomba man injured on the Moonie Highway at Nandi, near Dalby.
Police said between 2pm and 3.30pm on December 10, the man was driving towards Moonie in a black Kenworth truck towing two trailers.
The man has attempted to pass two slower sedans travelling in front of him.
The vehicles sped up and as the man has passed the vehicles, one person inside allegedly threw an object at him.
Police say the truck driver then pulled up on truck pads and was checking his trailers when he remembers being struck from behind.
When the man regained consciousness sometime later, people were standing around him.
He was then admitted to hospital suffering serious head injuries.
Police are appealing for any people involved in, or who witnessed the incident, to contact Dalby police on 4669 9222 or Crime Stoppers on 1800 333 000.
If you have information for police, contact Policelink on 131 444 or provide information using the online form 24 hours per day.