The Northern Territory Police Force is calling for information in relation to a suspicious death in the Avon Downs District on Sunday.

Around 5:50am, the Joint Emergency Services Communication Centre received a report a female had stopped breathing in the vicinity of Barkly Homestead on the Barkly Highway after a vehicle she was travelling in allegedly hit a kangaroo.

The woman died at the scene and the death is being treated as suspicious.

A 33-year-old male was arrested and conveyed to Tennant Creek where he has been assisting police with enquiries.

Investigations are ongoing and anyone with information or footage including CCTV or dashcam is urged to contact police on 131 444 or Crime Stoppers on 1800 333 000 or report anonymously via crimestoppers.nt.com.au and reference number P26099556.