Boris Nemtsov killed 'as act of terror' - Ilya Yashin

A close ally of murdered Russian opposition politician Boris Nemtsov and co-founder of Mr Nemtsov's party, Ilya Yashin, has said he is "totally sceptical" that the two men charged with his murder organised his killing.

"Mr Nemtsov was a key person in the Russian opposition and he was very brave, and a very serious critic of Mr Putin."

He spoke to the BBC's Sarah Rainsford.