Three people are dead and four others are in hospital after a two-vehicle crash near Olds, Alta. 

A westbound Acura SUV with a female driver from Olds collided head on with a Ford Freestar carrying six people around 6 p.m. MT on Highway 27, say RCMP.

The driver of the Acura was found dead at the scene, as well as the driver and rear passenger in the other vehicle.

Three people were taken by STARS and ground ambulance to Calgary in critical condition. A fourth person is in serious but stable condition at Olds Hospital.  

The occupants of the Freestar are residents of central Alberta. Police will not be releasing names of those involved.

An investigation into the crash is ongoing with help from an RCMP collision reconstructionist from Red Deer. Alcohol is not believed to be involved at this time. 

RCMP say early indications suggest the Freestar encroached into the westbound lane when the collision happened. 

"Weather conditions were favourable at the time, however it was at 6 p.m. so temperatures were changing. Road conditions ... were deteriorating as we have been here throughout the night, so it may have played a factor," said Cpl. Shawn Morgan.

He said the cold weather so far this winter coupled with melting from sporadic warm days has led to icy highway conditions.

Olds is roughly an hour's drive north of Calgary.

Olds map

The collision happened on Highway 27, just east of Olds, Alta. (Google Maps)