Authorities say singer Chris Brown has been released from a Los Angeles County jail.

Los Angeles Sheriff's deputy Tony Moore tells The Associated Press that Brown was freed at 12:01 a.m. Monday.

Moore says he doesn't have any other details on the release.

Brown has been in custody since mid-March, when he was arrested after being expelled from a court-ordered rehab sentence for violating its rules.

A judge last month ordered the R&B singer to remain in jail after he admitted he violated his probation by getting into an altercation outside a hotel in Washington, D.C., last year.