Tigers and their trainer in a China
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Fighting tigers: China's power struggle

In China - the disappearance of the country's former spy chief - is seen as evidence of a major power struggle.

Zhou Yongkang vanished late last year - suspected of corruption.

He was once one of the most powerful men in China but his name has not been mentioned officially in over 160 days.

An estimated £8.5 billion of his family assets have been seized and many of his allies have been arrested.

Now China waits to see if President Xi Jinping can keep such a powerful enemy out of sight.

The BBC's China editor Carrie Gracie reports on the mystery of the missing security chief.

  • 06 May 2014
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