Singer Chris Brown has been jailed for violating probation, related to his 2009 assault of then-girlfriend Rihanna, after he was reportedly kicked out from court-ordered drug rehab, the Los Angeles County Sheriff said.

According to reports, the popular but controversial R&B singer was taken into custody in Malibu Friday and is being held without bail on a warrant issued by Los Angeles County Superior Court Judge James Brandlin after the judge was informed that the singer had been thrown out of rehab "for failure to comply with rules and regulations of the program."

Brown "was cooperative when taken into custody," the authorities reportedly said in a statement. No further details have been released, but more information may be revealed when Brown appears for the probation violation hearing scheduled on Monday in Los Angeles.

Brown was sentenced to 90 days in treatment program in November following an assault arrest in which he broke a man’s nose after allegedly punching him for trying to photograph Brown.

Although Brown had completed the program in February, Brandlin ordered him to stay in the Malibu treatment facility until another hearing on April 23.

During the court meeting, a report from the rehab facility revealed that the singer's aggressive behavior was linked to PTSD and bipolar disorder.

The singer’s legal troubles began after he assaulted Rihanna in 2009 and pleaded guilty to felony assault in June 2009. He was sentenced to five years of probation and 1,000 hours of community labor.

Brown has been reportedly working on a highway cleaning labor crew in Los Angeles three days a week to fulfill the 750 hours of remaining service in his probation requirement. If he continues at that pace, he could complete his service by mid-October and fulfill his probation requirements by end of this year.