A driver was taken to the hospital with serious injuries after a box truck crashed into a tree in Redding on Tuesday morning.
Fire officials said they were called to Church Hill Road for a reported accident at 9 a.m.
Firefighters extricated the driver from the truck, and they were taken to a nearby hospital with traumatic injuries.
Investigators said the truck was traveling eastbound on Church Hill Road and as it rounded a downhill curve, it slid on the snow-covered road. The truck then veered off the right side of the road and struck a tree.
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The state Department of Energy and Environmental Protection (DEEP) and Aquarion Water Company were called in because of a diesel fuel spill.
Police said the weather conditions were a major factor in the crash. No additional information was immediately available.