A legislator in the central Chinese city of Chongqing is under investigation for graft, the latest official to fall in the Communist Party's fight against corruption.

Tan Xiwei, deputy director of Chongqing's People's Congress Standing Committee, is suspected of "serious violation of discipline and laws" - Party parlance for engaging in corrupt activities. The party's Central Commission for Discipline Inspection made the announcement yesterday.

Chongqing was once run by Bo Xilai, jailed for life last year for a range of crimes including corruption.