Three people were detained after a man was shot in the face while driving along the 5 Freeway in Norwalk Monday morning, officials said.

The California Highway Patrol got a call about a freeway shooting about 11:45 a.m., Officer Eric Torres told KTLA.

Witnesses told authorities there was heavy traffic at the time of the shooting.

The assailant, who was traveling in the No. 3 lane, got out of his vehicle, walked to a Penske truck behind him, opened the victim’s door and fired an unknown number of shots, Torres said.

The assailant then got back into his vehicle, a silver BMW sedan, and fled the scene.

Witnesses provided authorities with a license plate number, and officers located the car at a gas station near the intersection of Lake Avenue and Maple Street in Pasadena. Three people described as suspects were detained and the vehicle was taken for evidence, CHP said in a news release.

One of the men, who CHP officials have identified as the suspected shooter, has been identified as 39-year-old Pedro Tovar of Las Vegas. Tovar was booked into jail where he awaits possible charges for attempted murder and felony child endangerment.

He is currently being held on $1 million bail and is due in court Wednesday.

CHP detectives are currently investigating the circumstances that led up to the shooting and any witnesses are asked to call Detective Chris Chambers at 562-868-0503.

The victim, believed to be in his 40s, was taken to a hospital and is being treated.