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Eddie Izzard tribute to Robin Williams

13 August 2014 Last updated at 02:34 BST

Police have confirmed that the US actor and comedian Robin Williams took his own life at his California home. He was 63.

The comedian and writer Eddie Izzard became friends with Robin Williams when they worked together on the film "The Secret Agent".

He spoke to BBC Newsnight's Kirsty Wark about his sadness at the death of the actor.