DriveBC says the highway has since reopened to single lane alternating traffic but it's extremely slow going and there are long line-ups.
B.C. ambulance operatons manager Mark King says says falling rocks hit a car causing the airbags in the vehicle to deploy.
"There was no one trapped," he said. "No one was actually pinned in the vehicle. We took two patients from the single vehicle to the Penticton Hospital on a routine basis with minor injuries."
The online Okanagan website Castanet.net is reporting a female passenger in the vehicle suffered head lacerations.
Also on HuffPost