The four suspended judges include Chen Xueming, chief of the No.1 civil court of the Shanghai Higher People's Court, state-run Xinhua news agency reported.
The investigation was launched after a netizen released video footage showing the four judges soliciting prostitutes at the Hengshan Resort in Shanghai on June 9.
Two officials -- Chen and Zhao Minghua, deputy chief of the court's No.1 civil court -- have been identified. The court pledged a thorough probe and harsh punishment if the allegations are found to be true.
A 10-minute video clip posted on Sina Weibo, the Chinese equivalent of Twitter, showed five men getting cosy with several young women. They were later identified as judges in Shanghai High People's Court.
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The hotel's surveillance camera purportedly showed five scantily dressed women entering the rooms of the judges late at night and exiting about half an hour later stuffing money into their bras, the state-run Global Times reported.
An unidentified whistle-blower named two of the five judges as Chen and Zhao. He alleged that Zhao and his family owned at least four properties worth millions of yuan in Shanghai.