Hunan province's Hengyang City Saturday accepted resignations of 512 municipal lawmakers who allegedly took bribes from 56 provincial lawmakers, China's official Xinhua News Agency reported.
The 56 representatives were dismissed by the province.
An investigation into the fraud found about $18.1 million in bribes were offered to lawmakers and staff in Hengyang, the BBC reported.
"The fraud, involving such a huge number of lawmakers and a large amount of money, is serious in nature and has a vile impact," said a statement from the Hunan government. "This is a challenge to China's system of people's congresses, socialist democracy, law and party discipline."