Edmonton police said they were investigating a fatal collision that took place on Yellowhead Trail Sunday evening.
Police said on Sunday that a car was travelling westbound on Yellowhead Trail at about 5:30 p.m., when the driver appeared to lose control as it approached Victoria Trail.
The car flipped and landed on the roadway.
The male driver, believed to be 47-years-old was treated at the scene and taken to hospital.
His female passenger, believed to be 41-years-old, was pronounced dead at the scene.
EPS said witnesses reported the vehicle had been driving erratically, and speeding, before the collision.
It’s believed alcohol was a factor.
Anyone with information is asked to call the Edmonton Police Service non-emergency line at 780-423-4567 or #377 on a mobile phone.
Anonymous tips can be submitted to Crime Stoppers by calling 1-800-222-TIPS (8477).