BEIJING -- Three officials in Southwest China's Guangxi Zhuang autonomous region are being investigated for allegedly accepting bribes in separate cases, the Supreme People's Procuratorate (SPP) announced on Wednesday.

The three are Liang Zhenlin, former vice head of the justice bureau, Zhong Shifan, former Party secretary of the prison management bureau, and Zeng Aidong, former head of the civil air defense office's discipline inspection group, according to an SPP statement.

Zhong is also suspected of abuse of power, while the other two also allegedly neglected their duties, it said.

According to the SPP, all three 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.