BEIJING, May 6 -- Chinese prosecutors have filed corruption indictments against Zhang Lijun, former vice minister of environmental protection, and three provincial-level officials.

They are Sui Fengfu, former deputy director of the Heilongjiang Provincial People's Congress Standing Committee, Liang Bin, former head of the Organization Department of the Communist Party of China Hebei Provincial Committee, and Lu Wucheng, former deputy director of the Gansu Provincial People's Congress Standing Committee, according to a statement issued by the Supreme People's Procuratorate on Friday.

All four are charged with accepting bribes.