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Zhou Yongkang: China investigates ex-security chief

30 July 2014 Last updated at 00:32 BST

China's former security chief Zhou Yongkang is being investigated for suspected "serious disciplinary violation", state media says.

Mr Zhou headed China's Ministry of Public Security and was a member of the top decision-making body, the Politburo Standing Committee.

The move to target him will send shockwaves through the political elite, as Charles Scanlon reports.