Motorcyclist dies after hitting cow

A motorcyclist has been run over and killed after hitting a cow and coming off his bike in Queensland's Central Highlands.

Police say the 55-year-old man hit the cow at around 6pm on Saturday on Ardurad Road about 30km south of Blackwater.

A number of witnesses were rendering first aid to the man when he was struck by a four-wheel-drive vehicle coming along the road.

He died at the scene.

The Forensic Crash Unit is investigating.