A 46-year-old Carmacks man is dead and another is facing a number of charges after a rollover on the North Klondike Highway late Wednesday afternoon.

Archie James Lennie died before emergency crews from Whitehorse and Carmacks arrived at the rollover scene, 10 kilometres south of Braeburn, Carmacks RCMP said this morning.

Meanwhile, police are continuing to try to find three other people who were in the full-size pickup truck.

Carmacks RCMP Cpl. Brian Pilatzke said officers were called to the accident scene at around 4:30 p.m.

They found the vehicle, which had been travelling north toward Carmacks.

Lennie had been thrown from the truck. He had not been wearing a seatbelt.

Police believe the others in the car had been wearing their seatbelts. There was also a car seat in the vehicle, Pilatzke said.

Officers arrested the driver.

As they investigated, police learned there were also a man, woman and child in the vehicle who had left the scene.

They were reported to be headed to the Carmacks health centre, but police weren't able to find them.

Pilatzke noted that so far, they have no detailed descriptions of the missing people nor information on where they're from.

The crash points to the importance of both wearing a seat belt and driving sober, he said.

Roderick Clement, 44, formerly of Tulita, N.W.T., and who recently moved to Carmacks, is charged with impaired driving causing death, refusing to take a breath test and driving while disqualified.

He was scheduled to appear in court in Carmacks later today.