SACRAMENTO, Calif. • The mass killing that left six people dead and 12 wounded outside bars just a block from California’s Capitol last weekend was a gunfight involving at least five shooters from rival gangs, Sacramento police said Wednesday.

Police said they identified at least five gunmen but there may have been more. Only two suspects — both brothers wounded by gunfire — have been arrested in connection with the shooting and, so far, only face firearms charges.

“We’re still working through … who the actual shooters are in the case,” Sgt. Zach Eaton said.

Until Wednesday’s announcement, police had been silent on the motive for the shooting that erupted early Sunday as bars were letting out. Rapid-fire bursts of over 100 gunshots echoed through the streets as terrified patrons ran for their lives and others were hit by bullets.

Authorities credited witnesses who contributed nearly 200 videos, photos and other tips with helping the investigation.

Police declined to name the two gangs involved or the affiliation of any suspects.

One of the brothers in custody was freed from prison about two months ago and last year was rejected for earlier release after prosecutors argued he “clearly has little regard for human life,” documents show.

Smiley Martin, 27, who was released on probation in February, was arrested Tuesday on suspicion of possession of a firearm by a prohibited person and possession of a machine gun. Hours before Sunday’s attack, Martin posted a live Facebook video of himself brandishing a handgun, a law enforcement official told The Associated Press.

Police were trying to determine if a stolen handgun found at the crime scene was used in the massacre. It had been converted to a weapon capable of automatic gunfire.

Detectives also were trying to determine whether the gun Martin brandished in the video was used, according to the official, who was briefed on the investigation but was not authorized to publicly discuss details and spoke on condition of anonymity.

Martin and his brother were among those wounded when gunfire erupted about a block from the state Capitol at about 2 a.m. Sunday as bars closed and patrons filled the streets.

Photographs of De’vazia Turner are on display as his mother Penelope Scott speaks during an interview at 10th and K street in Sacramento, Calif. Turner was shot and killed after a shooting broke out early Sunday morning. Multiple people were killed and injured in the shooting.

the associated press