LOS ANGELES (AP) - Authorities say R&B singer Chris Brown has been arrested on a warrant.
Sheriff's Deputy Amber Smith says Brown was taken into custody on Friday on the warrant but that no other details were immediately available.
The 25-year-old remains on probation for his 2009 attack on then-girlfriend Rihanna and had been ordered by a judge to remain in rehab since November. He was arrested in Washington, D.C., in October after a man accused the singer of hitting him outside a hotel.
An email message sent to his attorney, Mark Geragos, was not immediately returned.
An email message sent to probation officials was not immediately returned Friday afternoon.
Spokeswomen for the Los Angeles District Attorney's Office and Superior Court said they had not been informed of Brown's arrest.