Seven people were injured and two had to be airlifted after the vehicle they were in rolled near Ponoka.
The Ponoka Integrated Traffic Unit was called to the crash at about 4:30 p.m. Monday afternoon about five km north of Hwy 53 on Hwy 2.
Police said the vehicle was southbound on Hwy 2 with seven people on board when it left the road and rolled into the ditch.
All seven people were hurt in the crash. Five were taken by ambulance to Ponoka Hospital and two were airlifted by STARS Air Ambulance to Edmonton with critical injuries.
The crash closed both northbound lanes and one southbound lane as an RCMP traffic reconstructionist assessed the incident.
The investigation continues.