Dunedin's deputy mayor Sophie Barker has resigned, saying the breach of a confidential council meeting was the final straw.
Just days ago, she and senior city councillor Jim O'Malley filed a complaint about Mayor Jules Radich, for minimising a racist outburst by community board chairman Barry Williams.
Barker will continue on as a councillor.
Radich has accepted her resignation and RNZ has contacted the Mayor for comment.
Sophie Barker was not available for an interview today, but councillor Jim O'Malley spoke to Charlie Dreaver.