COLUMBIA VALLEY, B.C. - Police in B.C. don't know what caused a crash on Friday that claimed the lives of an American family.
The family of four from California died when their camper van collided with a tractor-trailer that had jacknifed.
The accident occurred along a winding, three-lane stretch of Highway 93 in the province's Kootenay National Park.
Police say initially they didn't know who was in the camper, but have now determined a couple and their two children were inside.
Police say the couple had entered British Columbia on Thursday.
Investigators say the accident occurred on a stretch of highway with a 60-kilometre-per-hour speed limit and roads were wet at the time.
The driver of the tractor-trailer was detained and questioned by police, but was released without charge.
