FRESNO (AP) — Authorities say a Greyhound bus driver was arrested on suspicion of DUI after crashing into a guardrail with 35 passengers on board.

The California Highway Patrol says the crash happened Sunday morning when the driver lost control on a highway transition road in Fresno.

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CHP spokesman Victor Taylor says of the 35 passengers, about 10 complained of pain and one was transported to a hospital.

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The Fresno Bee reports the driver, whose identity was not immediately released, was arrested on suspicion of DUI.

Taylor says drugs are suspected to be involved, but not alcohol.

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A phone message seeking comment from Greyhound was not immediately returned.