Quebec's Bureau of Investigations is looking into a high-speed chase and police shooting that left a highway closed for Monday morning rush hour.

The incident began on Sunday evening when police officers brought a 28-year-old man to hospital who had health issues after taking drugs.

The BEI said the man then left the hospital and stole a car, and was chased by police until officers halted the pursuit because it was too dangerous.

Police officers on patrol then spotted the stolen car in the parking lot of the Galeries des Sources shopping mall on Sources Blvd. in Dollard-des-Ormeaux, and officers approached the car on foot.

The suspect is accused of then trying to run down the police officers. One of them fired at the driver and the vehicle before the driver fled along Highway 40 West.

Several police officers began chasing the driver, and witnesses said the driver changed to the eastbound lanes of Highway 40 in Vaudreuil-Dorion. The chase ended 11 kilometres later near Veterans' Blvd/Boul. des Anciens Combattants when the driver crashed head-on into a police cruiser.

Police then used a Taser on the driver, and discovered he had been shot earlier by police.

The suspect and three police officers who were injured were taken to hospital. They are all expected to survive.

Police closed all three eastbound lanes of Highway 40 at 1 a.m. Monday as they conducted their investigation, and then had to wait for the BEI to arrive several hours later.

The independent police bureau will determine if police were justified in using their weapons. Meantime, the Surete du Quebec will speak to the driver, who is expected to face a long list of charges.

The eastbound highway was closed for hours while police conducted their investigation, and reopened at 9:30 a.m.

The BEI is asking all witnesses to contact them at bei.gouv.qc.ca.