Police say singer Amy Winehouse has been charged in connection with an assault at a theater.

Thames Valley Police said in a statement that the 26-year-old soul diva was arrested Wednesday (Dec. 23) after she presented herself at a police station with her lawyer. Winehouse is free on bail and must appear in court on Jan. 20.

Police say the singer was charged with a public order offense and common assault under the name Amy Civil, following a Saturday incident at Milton Keynes Theatre. Winehouse was granted a divorce from her husband, Blake Fielder-Civil, in July.

Police did not provide details on the incident, but British media have reported that the singer allegedly struggled with a member of the theater's staff after heckling at a performance.