Highway 632 is closed today for a police investigation.
Yesterday afternoon, West Parry Sound OPP, Seguin Fire Department, and Parry Sound EMS were called to an incident where a vehicle left the road.
Police say a pickup truck drove off the road and into the water.
The driver and passengers could not be found and officers are continuing their search today with the help of the Canine Unit and the OPP Helicopter.
The Highway will be closed this morning between Rossmoyne Road and Maplehurst Road until further notice.