A man caught on camera punching and kicking an unconscious person Sunday in a parking lot outside Levi's Stadium has been arrested, Santa Clara police said, the Press Democrat reported.

Police identified the suspected assailant as Stephan Ramirez, 32, of San Jose. He was arrested on suspicion of felony assault and an outstanding warrant. "The Santa Clara Police Department shares the community's outrage over the violence at Sunday's 49ers-Raiders game at Levi's Stadium," police said. "Rivalry is never an excuse for criminal behavior."

Footage of the incident went viral, police said. Multiple incidents of "fan-on-fan violence" were reported at the game. Authorities arrested 11 people and ejected 45 from the grounds, according to Santa Clara police Lt. Eric Lagergren. Several of the incidents remain under investigation.