LOS ANGELES — After a weekend in jail, Chris Brown is facing a court hearing over his dismissal from rehab and whether he should be given additional penalties, which could include more time behind bars.

The Grammy-winning R&B singer spent the weekend in a downtown Los Angeles lockup after a judge ordered him to be arrested for violating the rules and regulations of his treatment. Court records did not elaborate on the reason for Brown’s dismissal from the facility in Malibu that was treating him for anger management, substance abuse and issues related to bipolar disorder.

Brown, 24, had been under court orders to remain in treatment since November, one month after he was arrested in Washington, D.C., after a man accused him of punching him in a confrontation outside a hotel. That case remains pending, and Superior Court Judge James R. Brandlin has not yet scheduled a probation violation hearing to address whether he would penalize the singer for the arrest.

Brandlin revoked Brown’s probation in December, but refused a prosecutor’s request in February to send the singer to jail because of the Washington misdemeanor assault case.