A driver was killed earlier this month when her SUV went off Interstate 25 and rolled down a steep embankment in Platte County, according to the Wyoming Highway Patrol.

The crash happened on Nov. 21 at approximately 4:30 a.m. near milepost 70, roughly 10 miles south of Wheatland.

The patrol says 72-year-old Texas resident Sandra Bates was driving north when she failed to negotiate a curve and her SUV went off the interstate and rolled multiple times, coming to rest at the bottom of a steep embankment.

Bates wasn't wearing her seat belt properly and died from her injuries.

The patrol says it's possible Bates fell asleep behind the wheel.

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