BEIJING - Jiang Jiemin, head of the State-owned Assets Supervision and Administration Commission of the State Council, is being investigated over suspected serious disciplinary violations, Xinhua has learned from the CPC Central Commission for Discipline Inspection (CCDI).

Jiang, who became head of the state-owned Assets Supervision and Administration Commission (SASAC) in March, was previously chairman of top energy group China National Petroleum Company, or CNPC.

Related stories:

4 CNPC execs suspended over official investigation

The China National Petroleum Corporation (CNPC), Asia's largest oil and gas producer, confirmed on Thursday that it has decided to remove its four senior executives under investigation for "serious violations of discipline" from their posts.

The four executives are Wang Yongchun, deputy general manager of the CNPC; Li Hualin, deputy general manager of the CNPC; Ran Xinquan, vice-president of PetroChina Company Ltd.; and Wang Daofu, chief geologist of PetroChina. [Full story]