03/29/2014 07:17 EDT | Updated 05/29/2014 05:59 EDT

Head-on traffic collision shuts down major B.C. bridge for hours

SURREY, B.C. - A head-on collision has shut down traffic on a major bridge that links two Vancouver-area municipalities.

Surrey RCMP say that the Pattullo Bridge, which joins New Westminster and Surrey, will remain closed until Saturday evening.

Sgt. Maureen Hickey says that two vehicles collided.

She says the driver of one vehicle had a medical emergency causing that person to jump into an oncoming lane.

Hickey says there were a total of four people on board both vehicles.

She says all of them were rushed to hospital, one of whom has serious injuries.