Two Democrats said yesterday they would quit the Housing Authority following the resignation of chairwoman Rosanna Wong Yick-ming. Dr Anthony Cheung Bing-leung, a full member, and Dr Lo Chi-kin, a member of the human resources committee, joined Democrat Law Chi-kwong and Gary Cheng Kai-nam of the Democratic Alliance for the Betterment of Hong Kong in tendering their resignations. Hong Kong has been hit by a series of building scandals in the past 18 months. Both Dr Cheung and Dr Lo said the public should look ahead for structural reform within the authority and related policy bureaus and departments after controversies in political accountability are settled. They also said it may not be proper for the Government to take disciplinary action against Director of Housing Tony Miller if the Legislative Council passes a vote of no-confidence against him this week. Dr Cheung, who was appointed a committee member in 1992 and became a full member in 1996, said Ms Wong's resignation at the weekend was a responsible move to address the public's grievances on the piling scandals. He said she had had the mandate and public support as leader of the authority. Dr Cheung regretted Ms Wong's resignation. On Mr Miller's fate, he said the Government had to consider whether to take disciplinary measures against him following the no-confidence vote. He said the mistakes committed by Mr Miller were, however, 'common mistakes' in the Government. Dr Lo also said the problems could not be solved merely through changes in the leadership of the Housing Authority and Housing Department. Daniel Lam Chun, who chairs the authority's building committee, said he would stay on to continue the reform drive despite an earlier threat to quit if Ms Wong resigned. He said the authority was facing political pressure from Legco and staff unions. The Alliance of Housing Department Staff Unions handed in 4,000 signatures from the public to the Chief Executive yesterday urging the resignation of Mr Miller and Secretary for Housing Dominic Wong Shing-wah.