The California Highway Patrol confirmed a death had resulted from the two-vehicle wreck, which was first reported just before 3:15 p.m. Wednesday on Highway 20 just east of Scotts Valley Road, west of Upper Lake.
Units arriving at the scene reported finding the roadway blocked by a pickup truck and a sedan, according to CHP and radio reports.
Within a few minutes of getting to the scene, medics confirmed one person had died, according to radio traffic.
Shortly before 3:45 p.m., Northshore Fire medics at the scene asked for an air ambulance to respond to Sutter Lakeside Hospital to transport another patient to an out-of-county trauma center.
The CHP said just before 4 p.m. that the highway was closed in both directions, with no estimated time of reopening.
The roadway was reported to have been reopened just before 6 p.m.
Additional information will be published as it becomes available.
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