BEIJING, Aug. 19 -- Four cadres in north China's Shanxi Province are under investigation for suspected serious violations of discipline and laws, including bribery, embezzlement and corruption, according to the Supreme People's Procuratorate on Tuesday.

An Junsheng, former head of Shanxi's bureau of geology exploration, is suspected of bribery.

Gao Shibao, former administrative director of the economic development zone of Shuozhou City, is being investigated for bribery.

Hu Biao, former chief of the water supply bureau of Shuozhou City, is suspected of embezzlement and bribery.

Xie Kemin, former deputy chief of the Shanxi supervision bureau, is suspected of bribery and embezzlement of public fund.

All cases are under investigation.