An elderly woman is in critical condition in Edmonton hospital after a crash west of Lacombe on Tuesday morning.
The 74-year-old was taken to the University of Alberta Hospital by STARS Air Ambulance with life-threatening injuries.
Sheriff Sgt. Nathan Kardish said the vehicle was travelling south on Hwy 2 when it left the highway, rolled over the guard rail and down onto the embankment of Hwy 12.
Kardish said the matter is still being investigated and they have yet to determine the cause of the crash.
About 10:30 a.m., Ponoka RCMP Integrated Traffic Services and Lacombe Fire and EMS were called to the intersection of Hwys 2 and 12 to a report of a single-vehicle rollover.
The woman was trapped in the vehicle and had to be extracted.
STARS responded to the crash at 10:48 a.m., landing at the intersection and closing the eastbound lanes of Hwy 12.
Kardish said the Ponoka Integrated Traffic Unit is looking for witnesses to the crash in their investigation.
Anyone with information about the crash is asked to call the RCMP at 403-783-4472.