A serious two-vehicle crash at the intersection of Grant Avenue and Stafford Street sent one person to hospital in unstable condition Friday morning.

Winnipeg police Const. Rob Carver said one vehicle tried leaving the scene but didn't get far before three people inside took off on foot at about 7 a.m. Investigators suspect the vehicle they left at the scene was stolen, he said.

That vehicle slammed into the back of the other vehicle, Carver said, whose lone occupant was rushed to hospital in unstable condition. The person's condition has improved to stable.

No arrests have been made, Carver said.

Police said to expect the intersection to be closed off until late-afternoon Friday. (Thomas Asselin/CBC)

Police remained on scene through the morning, and Grant was closed between Lilac and Harrow streets.

Northbound Pembina Highway was backed up all the way to Grant as drivers experienced delays trying to navigate their way around the accident site.

Drivers should avoid the intersection and can expect it to remain closed until mid- to late-Friday afternoon while officers investigate, police said.

Both vehicles appeared seriously damaged. (Thomas Asselin/CBC)

The mangled back end of a vehicle is visible in the middle of the Grant and Stafford intersection Friday morning. (CBC)

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