A quad bike rider has died after a collision with a motorbike rider on a dirt race track near Alice Springs. 

Emergency services were called to the scene of the crash on the Finke track — where the annual Finke Desert Race is held — near Maryvale Road, about 4pm on Friday.

The male quad bike rider, 27, was declared dead at the scene, while the male motorbike rider, 24, was taken to hospital in a serious condition, according to Northern Territory police. 

Since then, the 24-year-old man has been flown interstate for treatment. 

Major crash detectives remain on the scene and motorists are advised to avoid the area. 

A report will be prepared for the coroner.