The two-vehicle collision between a semi-truck and another vehicle on Highway 22 between Township Roads 283 and 284 took place around 7:30 p.m. on Thursday, according to RCMP and emergency crews.
The driver of the semi-truck was unharmed and declined an EMS assessment, EMS said.
The driver of the vehicle was trapped and required extraction from the fire department.
The driver of the vehicle was flown to the Foothills hospital in serious but potentially life-threatening condition, EMS said.
Traffic was affected in all directions while RCMP remained at the scene for several hours as they investigated.
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