A woman is facing several charges, including impaired driving causing death, after a fatal collision involving a car travelling the wrong way on Highway 407 near Oakville Saturday night.

According to police, a Mazda 3 was travelling in the wrong direction in the westbound lanes of Highway 407 near Trafalgar Road, when it struck a Toyota Corolla head-on around 9 p.m.

Carol Grimmond, 47, was travelling in the Toyota and died from her injuries. The Corolla’s driver, who was Grimmond’s twin brother, was taken to hospital with minor injuries.

"The driver just had no time to react," Sgt. Dave Woodford told CP24. "When he saw it (the car) it was the last second and when you are travelling at 100 km/h you have very little time to react."

The female driver of the Mazda 3 that was travelling the wrong way was not injured and was arrested at the scene of the crash.

Oakville resident Mary Sampson, 55, has been charged with several offences including impaired driving causing death, criminal negligence causing death and dangerous operation of a motor vehicle causing death.

Anyone with any information about this case is asked to contact the OPP at 905-841-5777.