The top anti-graft authority has reiterated the importance of disciplinary inspections of lower level of government organizations and urged all Party committees to stop promoting corrupt officials.

The Central Commission for Discipline Inspection, China's top anti-graft body, said on Sunday that half the officials convicted of corruption charges in a couple of provinces were found to have had a history of corrupt practices before their appointments were approved by Party committees.

"How can corruption be rooted out when the central leadership fights endemic corruption alone?" the CCDI asked.