Mixed-martial arts fighter Jason "Mayhem" Miller allegedly set off fire extinguishers and destroyed property inside a San Diego, Calif.-area church before police found him sitting naked on a couch and arrested him.

Miller, the former host of the MTV reality show "Bully Beatdown," was taken into custody by Orange County Sheriff's officials Monday after they received a call around 9 a.m. from a pastor at the Mission Hills Church in Mission Viejo reporting a burglary in progress.

TMZ.com first reported that Miller, a well-known personality in the mixed-martial arts world, had been taken into custody by police and placed under medical evaluation. He was reportedly awake and coherent when officials found him naked on a couch on the church's second floor.

Both the church's first and second floors were covered in retardant from a fire extinguisher and trashed with broken pictures, CDs and books, authorities told TMZ.

Miller is a former fighter for both UFC and Strikeforce. His online bio describes him as being known for "flashy entrances, exciting fighting style, and magnetic personality, both in and out of the ring."

He left the UFC in May after losing a fight to C.B. Dollaway that he showed up to wearing a pink boa around his neck and carrying a pink boombox in his hand. Prior to the fight he had vowed to retire if he lost that fight.

In addition to his three seasons hosting the Mark Burnett produced "Bully Beatdown" show, in which bullies were pitted against professional MMA fighters to "teach them a lesson," according to his website, Miller served as a coach on UFC' s "The Ultimate Fighter" on Spike TV.

Miller is being held on $20,000 bail and is expected to appear in court on Wednesday, according to authorities.