SAN FRANCISCO (CBS SF) — A driver was killed, his passenger injured with a leg wound and the gunman who fired into their vehicle remained at large early Tuesday after a shooting on southbound Highway 101 in San Francisco.

Investigators finally reopened all lanes on the busy freeway at around 2 a.m., unraveling a massive backup that began building shortly after the 9:30 p.m. shooting.

Video on the scene showed the Cesar Chavez exit off southbound 101 covered with debris. The bullet-riddled black sedan had crashed into high impact barrels before slamming to a stop on the exit.

The 30-year-old driver suffered gunshot wounds to his abdomen and lower body. He died from his injuries, CHP officials said.

The 28-year-old passenger suffered a gunshot wound to his lower body and was taken to Zuckerberg San Francisco General Hospital, according to the CHP.

The San Francisco medical examiner’s office is working to identify the victim who died.

A description of the shooter and the suspect vehicle was not immediately available. Detectives are asking anyone with information to call the CHP’s tip line at (707) 917-4491.

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