Highway 89 is closed between Harriston and Mount Forest after a multi vehicle crash.
At 7:30am, two pick up trucks sideswiped each other traveling north and southbound.
A flatbed trailer, which was being towed by one of the trucks had dislodged and propelled into a nearby OPP cruiser which was on an unrelated traffic stop just north of Harriston.
No injuries have been reported with damage sustained to both pickups, the dislodged trailer and minor damage to the police cruiser.
There was a set of road closures but all roadways have since reopened.
Investigation is ongoing.
