A Behchoko woman is dead after a rollover on Highway 3 south of the community.
Police say they responded to the crash at about 5 p.m. Wednesday afternoon. The vehicle was found about 150 feet off the roadway on its roof, about 15 kilometres south of the hamlet near Mosquito Creek.
Two occupants of the vehicle were transported by ground ambulance to Yellowknife for medical treatment of non-life threatening injuries. A third occupant, a woman from Behchoko, was located, deceased.
Two other occupants of the vehicle were unaccounted for when the RCMP arrived on site and efforts are being made to locate them.
Behchoko RCMP is investigating the incident along with the territory coroner's office.
"It is believed alcohol and/or drugs use is a factor in this incident," a police release read.
"The investigation is ongoing and updates (are) to follow."
Also, the NT RCMP Collision Analyst Unit deployed to complete a forensic exam of the scene.
Behchoko ambulance and Fire Department members were also on site to assist the RCMP, as well as the GNWT Department of Transportation, who provided traffic control. The highway remained open during the investigation.
Anyone with information on this incident is asked to call Behchoko RCMP at 392-1111, contact Crime Stoppers at 1-800-222-8477 nwtnutips.com, (click on "submit a web tip") or text: “nwtnutips” plus your message to 274637.