The California Highway Patrol was investigating a possible shooting on the 91 Freeway in Anaheim Hills on Monday, Aug. 4, 2014. (Credit: KTLA)

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A motorist was wounded and a second man was in custody after a car-to-car-shooting on the 91 Freeway in Fullerton on Monday.

A man called 911 from his cellphone around 4:30 p.m. claiming he had been shot by someone in another vehicle while traveling on eastbound 91 Freeway, according to a news release from the Fullerton Police Department.

While on the phone with the 911 dispatcher, the victim continued to follow the alleged gunman on the freeway, the release stated.

"I'm pretty surprised the driver was able to call 911 and follow the suspect vehicle," Officer Florentino Olivera with the California Highway Patrol.

There was initially some confusion over whether the shooting occurred in Fullerton or Anaheim Hills.

It now appeared the shooting happened somewhere on the eastbound 91 Freeway near the 5 Freeway in the Fullerton area, according to Lt. Bob Dunn with the Anaheim Police Department.

The victim kept driving for several miles before he and the suspected gunman were pulled over in Anaheim Hills, Dunn said.

The unidentified victim was transported by ambulance to UCI Medical Center in unknown condition, according to Anaheim Fire officials.

He sustained one gunshot wound to the upper body, Dunn said. His injuries were not considered life-threatening, authorities said.

The victim's vehicle, a white Ford SUV, showed evidence of gunfire, aerial video showed.

Several patrol cars were also surrounding a second vehicle parked about a half mile down the freeway.

The driver of that car was detained by officers, aerial video showed.

He could be seen being put inside a squad car with bags tied around his hands.

"That's something that we do to preserve any evidence that may be left on the hands if someone had fired a weapon recently," Sgt. Kathryn Hamel with Fullerton police.

He was later transported to the Fullerton Police Department for questioning, the release stated.

Traffic was shut down for a time on the freeway Monday evening while officers searched for evidence, including a weapon.

Monday's shooting came just over two weeks after the July 15 fatal shooting of a father of four on westbound 91 Freeway east of the 57 Freeway.

Agustin Villegas was riding in the passenger seat of his cousin's truck with their two teenage sons when he was fatally hit.

David Arzate Cabrera, 45, was arrested Friday in connection with that shooting.

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