The CPC expelled former police chief of China's northern Inner Mongolia Autonomous Region Zhao Liping, who is suspected of murdering a lover. He has been expelled for corruption, state-run Xinhua news agency reported.
Zhao is also a former deputy chairman of the Inner Mongolia Regional Committee of the Chinese People's Political Consultative Conference, the regional political advisory body.
In a statement, the CPC Central Commission for Discipline Inspection said that Zhao took advantage of his posts to seek benefits for businesses and officials in addition to accepting bribes.
Zhao also illegally possessed guns and ammunition.
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He was detained by police in March in Mongolia's Chifeng on suspicion of killing a woman with whom he had an intimate relationship. His case has been referred to judiciary for trial, the report said.
Also deputy secretary of the Communist Party of China's Yunnan Provincial Committee Qiu He has been expelled from the CPC and public office.
The Central Commission for Discipline Inspection (CCDI) of the CPC today said in a statement that Qiu had seriously violated Party rules by accepting gifts and seeking benefits for the business activities of his relatives.
Also Yang Weize, former Party chief of Nanjing, capital of east China's Jiangsu Province, has been stripped of his post and expelled from the CPC, the statement said.
His case has been handed over to judicial authorities, the CCDI said in a statement today.
It said that an investigation found Yang had "seriously violated" party rules and concealed some personal matters which should have been reported to authorities.
By accepting cash gifts, he was in "serious breach of integrity and self-discipline rules" and he used his position to seek interests for others.
Thousands of officials of various ranks faced investigations since Xi launched the drive in 2013.