BARRIE -- OPP say the woman involved in a T-bone collision with a pick-up truck on Highway 90, remains in critical condition.
The crash occurred in Springwater Township just before 9-o'clock Thursday evening.
The 29-year old woman needed to be extricated from her car, and Simcoe County paramedics say she's was transported to the hospital in life-threatening condition.
According to paramedics, Ornge air ambulance was initially called to the scene but had to decline the rescue due to unsafe weather conditions.
The male pick-up truck driver was uninjured.
Highway 90 between County Roads 56 and 40 remains closed.
OPP say the road was snow-covered at the time.