Eight more senior officials have been fired or demoted for slack supervision with regard to the Sanlu tainted milk powder scam, the Communist Party of China's disciplinary watchdog, the Central Commission for Discipline Inspection, said on Friday.

The officials were from the General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ), the ministries of agriculture and health, the State Administration for Industry and Commerce (SAIC) and the State Food and Drug Administration.

AQSIQ's law enforcement supervision department chief Wang Bubu was removed from his Party and government posts, according to a statement posted on the Ministry of Supervision's website.