The incident that Shenzhen mayor Xu Zongheng was investigated by the Central Commission for Discipline Inspection (CCDI) was finally confirmed officially yesterday. The Xinhua News Agency quoted a CCDI responsible person as saying that Xu Zongheng "was suspected of serious violation of discipline and was currently under investigation by organization". It was understood that the Xu case would trigger a "big earthquake" in the political circle of Shenzhen. Apart from female vice-mayor Yan Xiaopei, two other vice mayors were also under investigation. It was learned that the CCDI had investigated this case for over a year, and the breakthrough came from a well-known mainland actress who obtained Hong Kong resident status not long ago, and this person had a close relationship with Xu Zongheng.