BEIJING, Dec. 23 -- Sun Zhaoxue, former general manager of China's top aluminum producer, is being investigated for allegedly accepting bribes, according to the Supreme People's Procuratorate (SPP).

Sun, also former member of the Communist Party of China (CPC) committee of the state-owned enterprise Aluminum Corporation of China (Chinalco), has been placed under "coercive measures," the SPP said in a Tuesday statement.

According to China's criminal procedure law, coercive measures include summons by force, bail, residential surveillance, detention and arrest.

The CPC Central Commission for Discipline Inspection (CCDI) announced earlier Tuesday that Sun had been expelled from the CPC and public office following its own investigation.

The CCDI investigation found that Sun took advantage of his post to seek profits for others, asked for and accepted "a huge amount in bribes," and committed adultery.