Police are currently at the scene of a fatal traffic crash on the Dawson Highway at Calliope.
Initial information suggests just before 9am a motorbike collided with a car on the highway approximately two kilometres west of Calliope.
The motorbike rider, a 40-year-old man died at the scene.
Diversions are in place on the highway but motorists are being advised to avoid the area.
The Forensic Crash Unit is investigating.
Anyone with information which could assist police with their investigations should contact Crime Stoppers anonymously via 1800 333 000 or crimestoppers.com.au 24hrs a day.
Crime Stoppers is a charitable community volunteer organisation working in partnership with the Queensland Police Service.