Former Party chief and chairman of China National Petroleum Corp Wang Yilin and former vice-chairman of the government of the Xizang autonomous region Wang Yong have been expelled from the Communist Party of China for severely violating Party disciplines and allegedly breaking laws, the country's top anti-corruption watchdog announced on Wednesday.

The removal was disclosed by the Central Commission for Discipline Inspection of the CPC on its website. The watchdog also said prosecutors are investigating Wang's alleged crimes, which include bribery.

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A preliminary investigation found that Wang betrayed the Party's ideals and beliefs. He is accused of accepting travels and gifts provided by private business owners, according to a statement of the CCDI.

He is also accused of using his position as CNP chair to benefit others in various areas, including securing job promotions and contracts for projects, and receiving a number of bribes in return, the statement said.

"Wang's behavior has seriously violated the Party's political, organizational, integrity and life disciplines, bringing great negative effects, so we decided to harshly punish him by removing him from the Party," the statement said.

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Also on Wednesday, Wang Yong, former vice-chairman of the government of the Xizang autonomous region, has been expelled from the Communist Party of China and removed from public office for severely violating the Party disciplines and allegedly violating laws, the country's top anti-corruption watchdogs said.

The removal was disclosed by the CPC Central Commission for Discipline Inspection and the National Commission of Supervision through the internet.

The suspected violations of national laws in Wang's case have been transferred to prosecutors for further investigation, the commissions added.

Wang was placed under disciplinary and supervisory investigation earlier this year. He was found to have illegally accepted banquet invitations and gifts, and he illegally owned shares of unlisted companies, according to a statement of the commissions.

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He is also accused of illegally interfering in market economic activities and allegedly accepted huge sums after using his vice-chairmanship to help people secure project contracts and purchase materials, the statement added.

"Wang's behavior has seriously violated the Party's political, organizational, integrity and life disciplines, bringing negative effects, so we harshly punished him by removing him from the Party and the public office," the commission said.