UPDATE: Authorities are now investigating a deadly crash that occurred Saturday night.

One teen has died following a single-vehicle crash involving an off-road vehicle in the Red River Floodway over the weekend.

The Winnipeg Police Service says they were called to the floodway in the area of St. Mary's Road and Courchane Road on Saturday night.

Emergency crews discovered a 4-seat all-terrain vehicle had rolled over at the floodway.

Three teens had been taken to hospital at the time of the collision with serious injuries.

One of the teens has since succumbed to their injuries.

The Winnipeg Police Service's Traffic Division is investigating the crash.