FULLERTON (CBSLA.com) — A motorist was arrested Monday in a car-to-car shooting on the eastbound 91 Freeway in Fullerton, police said.

California Highway Patrol confirmed they had a man in custody who fired several shots at another driver, striking him in the arm.

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Fullerton police said the shooting, which transpired around 4:30 p.m., may have been fueled by road rage.

After having been shot, the victim in a white Ford Explorer called police and was able to follow the suspect’s vehicle until officers caught up to him at the Weir Canyon exit.

The victim was being treated Monday night at UC Irvine Medical Center in Orange.

Officials haven’t identified the suspected shooter, whose hands were bagged as he was being handcuffed so police could test for powder residue.

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The 91 freeway initially remained opened, but as police continued their investigation, they closed all eastbound lanes near the 5 Freeway shortly before 8 p.m. to look for bullet casings. It was reopened around 9 p.m.

Monday’s arrest comes just three weeks after a deadly shooting took place on the same freeway.

Anaheim police arrested 45-year-old David Arzate Carbrera of Anaheim on suspicion of shooting 32-year-old Agustin Villegas of Anaheim on July 14. Carbrera allegedly shot Villegas, who was sitting in the front passenger seat of a Ford F-150, and the driver of the vehicle.

Investigators haven’t released a motive.

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Villegas’ two teen sons, both seated in the rear seats in the pickup, were uninjured.