Prosecutors this morning decided not to file charges against a nationally-renowned mixed martial arts fighter who was arrested in October after investigators alleged he organized "illegal cage fighting" matches in a St. Lucie West warehouse.

Din Thomas, 31, of Port St. Lucie - who made a name for himself while competing in the Ultimate Fighting Championship - was arrested on Oct. 31. Port St. Lucie police at the time said he organized and promoted an unsanctioned and unlicensed match out of a warehouse at 494 NW Lake Whitney Place, near Peacock Boulevard, that drew more than 150 spectators.

He was accused of violating a Florida statute that governs "prohibited competitions," a third-degree felony.

However, Assistant State Attorney Jeff Hendricks said today the state attorney's office has decided not to file formal charges against Thomas, and filed paperwork dismissing the charge on which he was arrested.