China is investigating one of its top spy chiefs for corruption, the ruling Communist Party's anti-graft watchdog said, signaling that the boldest crackdown on corruption in decades has spilled over into its powerful intelligence apparatus.
Ma Jian, a vice minister at the Ministry of State Security, is the most senior security official to be investigated since former domestic security tsar Zhou Yongkang was ensnared in a graft scandal last July.
The investigation into Ma could lead to a shake-up in China's powerful state security ministry, a KGB-like operation that spies on its citizens and foreigners domestically and internationally.