One man was taken to hospital with life-threatening injuries after a car was found fully submerged in a pond next to the north section of Anthony Henday Drive around 4 p.m.
The pond is located in north Edmonton about one kilometre west of 97th Street.
Fire and Rescue spokesman Michael Tucker told CBC News that firefighters pulled one man from the vehicle. He was taken to the Royal Alexandra Hospital.
Police believe the vehicle was travelling east when it lost control and sped across the median into the westbound lanes before ending up in the pond.
"He travelled, I have to say, at least 500 metres across the ditch and the oncoming lanes before heading into the farmer’s field," said acting Sgt. Margaret Raposo.
Raposo said water in the pond was chest-deep. She has been told the man in his mid-thirties was in the pond anywhere from six to 15 minutes.