Five people were taken to hospital following a multi vehicle crash on County Road 4 between Walkerton and Hanover.
It happened Saturday in Brant Township.
South Bruce OPP were called to what was originally a single vehicle crash.
Officers arrived to find the vehicle had struck a guard rail on County Road 4 where high winds and blowing snow were creating poor visibility.
More vehicles arrived and became involved in separate collisions near the first crash site.
In total, 9 vehicles were involved - including a South Bruce OPP cruiser and an ambulance - in three separate crashes.
Those taken to hospital had only minor injuries.
County Road 4 was closed for a time to protect emergency workers at the scene.
The South Bruce OPP are wanting to speak to the driver a black pickup truck that passed the crash site, wound up in the ditch, and then continued eastbound on Bruce County Road 4.
Anyone with in any information that can assist with the investigation can call the South Bruce OPP or Crime Stoppers.