Winter conditions caused a flurry of rollovers on the Coquihalla Highway near the Logan Lake turnoff between 8:30 a.m. and 10:30 a.m. Tuesday.
There were six vehicles involved in separate crashes in the same area two to three kilometres south of the turnoff.
Some of the vehicles may have been going too fast on icy roads, said Dave McMahon, assistant chief with Kamloops Fire Rescue.
"This section of highway between Merritt and Kamloops has a micro climate and people need to slow down," said McMahon.
B.C. Ambulance spokeswoman Kelsey Carwithen said at least two people were taken to Royal Inland Hospital with minor injuries.