(CFP)

Shen Peiping, former Vice Governor of southwest China's Yunnan Province, is under investigation for suspected serious violation of discipline and laws.

Shen becomes the fourth provincial-level official investigated this year. From 2007 to 2013, the 52-year-old Yunnan native worked first as the mayor and later Party Secretary of Pu'er in Yunnan. It is said that Shen improperly dealt with local petitioners.