LOS ANGELES (KTLA) – Raja Jackson, the son of former UFC light heavyweight champion Quinton “Rampage” Jackson, is under investigation after a violent outburst at a professional wrestling event in Los Angeles that left one performer hospitalized, authorities said.

The incident happened Saturday night during a livestreamed show at the KnokX Pro Wrestling Academy in Sun Valley. Video appears to show Jackson storming the ring during wrestler Stuart Smith’s match, lifting him and slamming him to the mat before unleashing more than 20 punches to Smith’s head.

The attack left spectators stunned as fellow wrestlers rushed to restrain Jackson. Smith, who performs under the name Syko Stu, was taken to a hospital, where he was reported to be stable but with serious injuries, including broken facial bones and lost teeth, his brother told USA Today.

LAPD officials say they received a call about 9 p.m. reporting an attempted murder. By the time officers arrived, Jackson had left the venue. Detectives later classified the incident as felony battery. As of Monday, no arrests had been made.

Quinton Jackson, who gained fame in the UFC, apologized on social media for his son’s actions, saying Raja had recently suffered a concussion and “had no business being in the ring.” He added that he was “very upset” about what happened and hoped Smith would make a full recovery.

KnokX Pro Wrestling Academy condemned the incident, saying what was supposed to be a choreographed stunt devolved into “a selfish, irresponsible act of violence.” The group said it had never experienced anything similar in its 17 years of operation.

The altercation followed an earlier confrontation caught on video, in which Smith struck Jackson with a beverage can outside the venue. Legal experts noted, however, that such an incident is unlikely to provide grounds for self-defense, given the severity of Jackson’s attack.

Videos of the attack, initially streamed on the platform Kick, quickly spread across social media, prompting widespread outrage from fans and figures in the combat sports world.

LAPD officials say the investigation remains ongoing.