BEIJING, Dec. 26 -- Four Chinese officials are being investigated for allegedly accepting bribes, according to a statement released on Friday by the Supreme People's Procuratorate (SPP).

They include Zhao Huanguang, former Party chief of North China Air Traffic Management Bureau of Civil Aviation Administration of China, and Liu Qingtao, former deputy general manager of Sinopec Oilfield Service Corporation.

Prosecutors in northeast China's Liaoning Province have been tasked with investigating them, the SPP said.

The other two suspects are Jiang Ming, former Party chief of Lishui district committee in Nanjing, capital city of east China's Jiangsu Province, and Zhang Yusheng, former director of an energy industry development department of the China International Engineering Consulting Corporation.

According to the SPP, investigations into the two have been assigned to prosecutors in Jiangsu and north China's Hebei Province.