China's top audit office on Monday revealed that it had about 24 million yuan ($3.89 million) of "problematic funds" while implementing the 2012 budget.
Six people have been prosecuted for allegedly working together to blackmail government officials in the city of Chongqing with secretly recorded sex videos.
10 Chongqing officials sacked 3 women detained
China Mobile, China's largest telecom operator, was found to have had problems in bidding and investment involving billions of yuan.
Huang Sheng, the former deputy governor of Shandong province, was sentenced to life in prison on Friday for accepting bribes of more than 12.23 million yuan ($1.98 million).
Huang Sheng, a former deputy governor of East China's Shandong province, was sentenced to life in prison on Friday for taking bribes.
China's prosecutors handled 3,657 corruption cases, and 1,481 cases involving dereliction of duty and rights violations during the first quarter of 2013, the Supreme People's Procuratorate (SPP) announced on Saturday.
Major online media outlets on Friday simultaneously opened special webpages to solicit public tips that may help to combat corruption.
After being removed from his post and investigated for two years, the former railway minister Liu Zhijun is prosecuted on Wednesday, according to Xinhua News Agency.
Premier Li Keqiang on Tuesday said corruption should be prevented by deepening related reforms.
Guangzhou's anti-graft body has decided to boost the management of village Party chief' trips outside the country in the following months.
Premier Li Keqiang vowed to crack down on corruption and practice frugality in government affairs, while meeting journalists on Sunday.
A deputy police chief in a county in East China's Anhui province has been removed from his job after an online post revealed he had an extramarital affair.