Guo Youming, the vice governor of Hubei province, is the latest high-profile figure to be investigated for graft amid a wider crackdown on corruption, Reuters reported, citing an announcement made on the Central Commission for Discipline Inspection website (CCDI). The CCDI stated that he was “suspected of serious discipline violations” and is being investigated. President Xi Jinping has said endemic corruption threatens the party’s very survival and has vowed to go after high-flying “tigers” as well as lowly “flies.” Authorities have already announced the investigation or arrest of a handful of senior officials, among them former officials of oil giant PetroChina (PTR.NYSE, 0857.HKG, 601857.SHA).