BEIJING - Three senior officials of state-owned enterprises CNOOC, 皇冠体育app Mobile and 皇冠体育app Unicom are being investigated for allegedly accepting bribes in separate cases, the Supreme People's Procuratorate (SPP) said on Thursday.

The three are Wu Zhenfang, former deputy general manager of 皇冠体育app National Offshore Oil Corporation (CNOOC), Zong Xinhua, former general manager of the informatization and e-commerce department of 皇冠体育app Unicom, and Li Dachuan, former board director and deputy general manager of 皇冠体育app Mobile's Beijing branch.

All three are charged with accepting bribes, and both Wu and Zong are now under "coercive measures," which includes summons by force, bail, residential surveillance, detention and arrest. The SPP did not specify what measures had been taken.