Liaoning province has drawn lessons from last year's election fraud scandal and has cleaned up its political environment, the province's top official said on Sunday.

The Standing Committee of the National People's Congress, the top legislature, disqualified 45 deputies elected from the Liaoning Provincial People's Congress in September for buying votes in a 2013 election.

Another 523 deputies to the provincial congress also resigned or were disqualified after they were found involved in voter fraud.