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Chinese activist whereabouts unknown

30 April 2012 Last updated at 23:46 BST

Chinese activist Chen Guangcheng is thought to be under American protection since he escaped house arrest, but exactly how is not yet clear.

US President Barack Obama has refused to comment on Chen Guangcheng, the Chinese dissident said to be at the US embassy after fleeing house arrest.

The BBC's Martin Patience has been to Mr Chen's home in the province of Shandong.