PINOLE — Gunfire rocked an East Bay freeway again Sunday night, hospitalizing one person and reigniting concerns about people in cars shooting at one another.

Two moving vehicles were involved in the shooting, which happened around 9:30 p.m. on Interstate 80 near Appian Way, California Highway Patrol spokesman Officer Daniel Hill said in a statement. A third vehicle stopped along the right shoulder of the freeway also was hit.

The shooting was the sixth one on I-80 between Pinole and Berkeley since November.

The CHP’s early investigation indicated an altercation took place between two vehicles as they traveled west on I-80, and that during the conflict, at least one shot was fired, Hill said. The vehicle with the gunshot victim proceeded to a hospital, and the suspect vehicle took off, Hill said.

Authorities did not release any identifying information about the victim, nor did they have any word on the victim’s condition. They withheld that information, because the shooting remains under investigation, Hill said.

The suspect vehicle took off and got away. The CHP did not have any information on the vehicle.

Nobody else was injured.

The CHP closed all lanes of westbound I-80 for nearly an hour after the shooting to investigate, and the two right lanes remained closed for several hours, Hill said.

A teenage girl and man were wounded in a shooting on eastbound I-80 near the Richmond Parkway on Jan. 11, the most recent of the I-80 shootings before Sunday. All six of the shooting have happened since Nov. 2, and police have not arrested anyone in connection with them

Police have said gang activity is suspected in at least some of the shootings, and that many of the victims were targeted.

Anyone with information is urged to contact the CHP at 1-800-835-5247 or 707-551-4100.

Contact Rick Hurd at 925-945-4789 and follow him at Twitter.com/3rdERH