A fifth occupant has been discovered deceased as investigations are ongoing into a head-on collision between two vehicles, on the Stuart Highway.
Emergency services were called to the scene at around 12.50pm yesterday, approximately 2km south of the Marrakai Road turn-off.
Police, Fire and Rescue Service crews and St John Ambulance attended the scene, where both vehicles were fully engulfed in flames.
Police say there were no surviving occupants.
A section of the Stuart Highway remains closed while detectives from the Major Crash Investigation Unit investigate the circumstances surrounding the crash.
Detective Senior Sergeant Michael Schumacher says investigators continue to examine the scene and work to formally identify the deceased.
“Due to the severity of the crash, which appears to have been a high-speed head-on collision, both vehicles caught fire, making this an extremely complex investigation.
“At this stage, we have confirmed at least four people have died.
“However, due to the extent of the damage, we are still working to formally identify the deceased and determine whether there were any additional occupants in either vehicle.
“One vehicle, believed to be a goods van, contains one deceased person.
“The second vehicle, a dual-cab utility, contains three confirmed deceased.”

