UFC fighter Tito Ortiz was arrested Monday after allegedly beating the mother of his kids, former porn star Jenna Jameson, TMZ reports.

Police responded to a 911 call and arrested Ortiz at the couple's Huntington Beach, Calif., home, the site says. He was handcuffed and taken away in a squad car to be booked into the Orange County jail.

Sources say Jenna's father called authorities and took her away after Ortiz was arrested. Jameson, who had "visible injuries," apparently told a TMZ photog she planned to press charges against Tito, with whom she has twin boys.

"I'm gonna be all right," she said. "My babies are all right ... everything's okay .. he's in jail."

An hour or so later, she announced via @jennajameson that she's going into a media blackout.

"I'm sorry to all of my fans, but I'm going to be quitting Twitter. I cant take any more abuse from ANYONE.. To my sweet fans...thank you," she wrote.

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