LOS ANGELES, Calif. - A rehab centre where Chris Brown voluntarily enrolled for treatment says the singer was discharged after throwing a rock through his mother's car window.

The letter from the facility was included in a probation report that was given to a Los Angeles judge and prosecutors Wednesday.

Superior Court Judge James Brandlin considered the report when he ordered Brown to spend three months in a residential treatment facility.

The rehab centre is not identified in the letter, but it states that Brown threw the rock at his mother's car after a joint counselling session Nov. 10. The incident was a violation of an agreement the singer made to refrain from violence when he entered treatment.

Brown agreed to renewed treatment in court Wednesday.

THIS IS A BREAKING NEWS UPDATE. Check back soon for further information. AP's earlier story is below.

Chris Brown is going back to rehab, this time with new rules from a judge.

Los Angeles Superior Court Judge James R. Brandlin on Wednesday ordered Brown to serve three months in a residential treatment facility and to submit to drug testing. The judge also ordered the R&B singer to perform at least 24 hours of community labour per week.

Brown appeared in court for the first time since he was arrested last month on a misdemeanour assault charge in Washington, D.C. Since then, he voluntarily entered and left a rehab program for anger management.

Brown's attorney Mark Geragos said the terms imposed by the judge were recommended by probation officers and the singer has agreed to abide by them.

The Grammy-winner may still face a probation violation for the incident in Washington, however Brandlin ordered probation officials to gather additional details about the case and report back for a Dec. 16 hearing.

A 20-year-old man accused Brown of punching him after he tried to get in a photo with the singer. Brown denied to police that he hit the man but was charged with misdemeanour assault and is due to appear in court Monday.

Brandlin said Brown is allowed to travel for the hearing if necessary, but his ruling makes clear that the expectation for the singer for the next few months is to receive treatment and perform community labour such as graffiti removal or roadside cleanup.

Brown was ordered earlier this year to re-do 1,000 hours of community labour that are part of his sentence for felony assault in the 2009 beating of Rihanna, his girlfriend at the time.

The singer appeared in court Wednesday with his girlfriend Karrueche Tran and only spoke once to acknowledge he agreed to the terms imposed by the judge.

At Geragos' request, Brown was also ordered to take any medications his doctor prescribed.

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Anthony McCartney can be reached at http://twitter.com/mccartneyAP .

News from © The Associated Press, 2013