Vancouver's Stanley Park Causeway partially reopened Monday evening after a head-on collision during rush hour sent one woman to hospital and closed the road in both directions.

Vancouver Police Department spokesperson Const. Jason Doucette said the crash, which occurred at approximately 5 p.m. PT, involved two vehicles: a Kia Soul and a Toyota Sienna minivan.

Police said the driver of this minivan was taken to hospital with non-life-threatening injuries. (Ruben Maciel)

There were no passengers in the vehicles, but the driver of the minivan was taken to hospital with non-life-threatening injuries.

"We're not really sure what led up to the collision or what caused it," Doucette said.

Vancouver police, in an emailed statement, said that as of 6:30 p.m. one lane northbound and one lane southbound had been opened. Doucette said investigators were on scene examining the crash.

A highway camera image, taken at approximately 5:30 p.m. PT Monday, shows heavy northbound traffic on Georgia Street after a crash on the Stanley Park Causeway. (DriveBC)

DriveBC reported the crash occurred north of North Lagoon Drive, about halfway into the park.

The causeway leads from the city's downtown to the Lions Gate Bridge which connects Vancouver to the North Shore.