By Elisabeth Smith

STOCKTON (CBS13) — A California Highway Patrol officer was injured in a crash Monday while trying to catch speeding drivers south of Stockton.

The CHP says the officer was behind the metal guard rail on Highway 99 holding a radar gun when two cars suddenly braked. One of the vehicles, a Toyota Highlander, flipped and hit the officer.

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He was taken to the hospital and is expected to be okay.

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The driver of the Toyota was also hospitalized.

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Officials do not suspect drugs or alcohol were a factor in this crash. No arrests have been made.