RCMP have provided more details on Monday's crash near Richer.
Steinbach RCMP responded to the two-vehicle collision along the Trans Canada Highway at approximately 12:30 p.m.
According to police, a truck pulling a trailer collided with an SUV pulling a camper trailer.
Police believe the truck pulling the trailer side-swiped the SUV.
RCMP say all occupants in the SUV were taken to hospital with non-life-threatening injuries.
The driver of the truck was not injured.
The collision snarled traffic for hours on the holiday, with cottagers and holiday travellers reporting standstill traffic as far back as Clearwater Bay in Ontario. That's approximately 125 km east of the collision site.
RCMP are continuing to investigate.