STANISLAUS COUNTY (CBS13) — A 46-year-old Patterson woman was killed in a rural Stanislaus County crash Wednesday afternoon.

California Highway Patrol says, just before 4 p.m., an SUV and sedan were involved in a crash along Gates Road near Highway 132 west of Modesto. First responders found that both cars had suffered major collision damage.

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The driver of the SUV, the Patterson woman, was rushed to the hospital but was later pronounced dead. She was not wearing a seatbelt, CHP says.

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Investigators believe the sedan driver drifted to the right and hit a metal guardrail, causing his car to go right at the SUV. The vehicles then crashed head-on.

The driver of the sedan was taken to the hospital with major injuries.

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Officers do not believe drugs or alcohol were factors in the crash.