CHINA is investigating a member of its top legislature, the country's corruption watchdog revealed yesterday, the latest high-profile official to be targeted in a government campaign to stamp out graft.

Bai Enpei, the ruling Communist Party's former top official in Yunnan province and the deputy head of an environmental protection committee in the National People's Congress, has been put under investigation, the Central Commission for Discipline Inspection said.

Bai, 67, was "suspected of serious discipline and law violations", the watchdog said in a one-line statement on its website, using party language for corruption. It gave no more details.

The leadership under President Xi Jinping has presided over an anti-graft campaign to shore up a ruling mandate shaken by suspicion that officials waste taxpayer money or use their positions for personal advantage.