KITCHENER -- The driver and passenger of a vehicle involved in a Waterloo crash have both died.

Emergency crews were called to the scene just before 10 p.m. on Saturday in the area of Westmount Road North near Old Post Road.

Regional police say the driver was heading north when he lost control of the vehicle, left the road, flipped, and collided with a tree.

Ed Schooley lives across the street from the crash and says he was the first one on the scene.

"I was watching a movie and I heard a big slam and bang, I thought somebody drove into my garage door," he said. "I jumped out partly because I just had a bicycle stolen two nights before. I couldn't believe what I was seeing.

"That late at night, everything just being emotional, that was scary, it became so quiet, and then to see the body."

The driver and passenger both died from the injuries sustained in the collision. The identities of the deceased have not yet been released.

Westmount between Columbia Street and University Avenue was closed for several hours due to the investigation.

Speed is considered a factor in the crash, according to officials.