ESCONDIDO, Calif. (AP) – Authorities say a Caltrans contract worker was struck and killed on a Southern California freeway by an SUV driven by a man suspected of being under the influence of drugs.

The California Highway Patrol says the 21-year-old victim and other road workers were fixing sprinklers along Interstate 15, just outside of Escondido, when he was hit Monday afternoon.

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Officer Jim Bettencourt says the driver of a Mitsubishi Montero was getting onto southbound lanes when he veered off the road, leading the vehicle to roll down the shoulder of the freeway before landing on its roof.

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The San Diego Union-Tribune reports ( the driver, 31-year-old Reginald Grigsby of Oceanside, was taken to a hospital for treatment of minor injuries. He was later arrested on suspicion of DUI and vehicular manslaughter.

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