Emergency crews responded to a single vehicle rollover on Saturday morning, which RCMP are now saying was a fatal one.
Rosthern RCMP, EMS and the Duck Lake Fire Department all responded.
Police say the vehicle was travelling south on Highway 783 around 9:30 Saturday morning when the driver lost control and veered off the road into the ditch and rolled several times.
There were 5 people in the vehicle.
They were all ejected.
One was transported to hospital by STARS, 3 were taken to hospital by ground ambulance and 1 was declared dead on scene.
Alcohol is considered a factor in the accident and the investigation is ongoing.