Rodney King, whose videotaped beating by police sparked the 1992 L.A. riots, was arrested on suspicion of driving under the influence Tuesday.
King was driving when he was pulled over in Moreno Valley, in Southern California's Riverside County, city police department officials claimed.
Officers saw King, who has acknowledged a longstanding drinking problem, commit "several traffic violations," a police statement said.
"A preliminary evaluation of the driver indicated he was possibly driving while impaired." The subject, later revealed to be King, "was transported to the Moreno Valley Police Department for a further evaluation," police said.
He was booked after that further evaluation.
King's 1991 beating by Los Angeles police officers after a traffic stop left him with skull fractures and brain and kidney damage. It was captured on video by a nearby resident, and four officers were indicted as a result.
Their acquittal sparked the riots that left 55 dead and cost billions in damage. Two officers were later found guilty in federal court.