All lanes were closed on a major route from Southern California to Las Vegas early Christmas Day after a pileup in the Cajon Pass.
The northbound 15 Freeway was closed in the Hesperia area due to a crash involving at least 15 vehicles on the icy road. The crash was reported at about 6:30 a.m., just south of Oak Hill Road.
Ten people were injured, but details regarding their conditions were not immediately available.
Drivers described a chaotic scene on the freeway about 80 miles northeast of Los Angeles.
"As soon as I hit the top of the hill, it was ice, black ice," Brian Bolik told the Victor Valley News Group. "I crashed and everyone else around me was crashing too. A car behind us went over the embankment and rolled."
Traffic was being diverted to Highway 138.
The road reopened at about 11 a.m.