On September 12, at 4 p.m. the Fort MacLeod RCMP were called to a report of a car travelling eastbound in the westbound lanes of Highway 3. Police immediately responded, however while en route additional calls were received that the eastbound vehicle had hit a westbound SUV causing a head on collision, west of the Monarch turnoff.
The driver of the car and lone occupant, was airlifted by STARS to a Calgary hospital with serious injuries.
The two occupants of the SUV were taken by ground ambulance to a Calgary hospital with serious but non-life threatening injuries.
Traffic was rerouted for several hours while the RCMP, Fire and EMS attended to the injured and began an investigation. A collision analyst also attended to conduct a scene examination.
The collisions remains under investigation.