BEIJING - Three officials from East China's Shandong province are under investigation for allegedly taking bribes, the Supreme People's Procuratorate (SPP) said on Tuesday.

Chen Ruizhai, former vice president of Shandong International Trading Group Corporation, is being investigated for taking bribes and graft by Shandong's Zaozhuang Municipal People's Procuratorate, according to a decision by the Shandong Provincial People's Procuratorate.

Wang Guoqun, former vice mayor of Yantai, is being investigated for taking bribes by Shandong's Liaocheng Municipal People's Procuratorate. 

Xu Tongwen, former secretary of the Communist Party of China committee of Qilu University of Technology is under investigation for taking bribes by Shandong's Heze Municipal People's Procuratorate, the SPP said.