Freezing conditions this morning have caused traffic accidents when vehicles slid out of control on black ice.
"It's all over the foothills," said California Highway Patrol officer Rich Wetzel. "We had two crashes on Bass Lake Road north of Highway 50. No injuries. Both are off the road."
Also this morning, around 7 a.m., north of Newcastle in Placer County, water run-off from a tree farm caused ice to form on Highway 193 near Gold Hill Road, according to a CHP traffic website.
A vehicle traveling along Highway 193 hit the patch of ice, went out of control and overturned. No word on injuries.
Caltrans has been requested to place sand on the roadway.
"People are driving too fast for these freezing temperatures," said Wetzel.