South African authorities issued an arrest warrant for Grace Mugabe, the wife of Zimbabwe’s former leader who was accused of assaulting a woman in Johannesburg last year, South African police said Wednesday, AP reported.

The warrant follows a long legal process during which a South African court this year ruled that the government acted illegally in granting diplomatic immunity to Mugabe when the alleged attack was first reported.

Grace Mugabe allegedly attacked model Gabriella Engels in an upscale hotel on Aug. 13, 2017, whipping her with an extension cord that cut her forehead.

However, Mugabe was allowed to return to Zimbabwe despite calls for her prosecution. She traveled with her husband, who was then president of Zimbabwe and attending a regional summit in Pretoria.