Police say Russian double agent Sergei Skripal and his daughter 'were poisoned by a nerve agent'

Latest: Sergei Skripal and his daughter Yulia are believed to have been poisoned in Salisbury by a nerve agent, Assistant Commissioner Mark Rowley of the Metropolitan Police said.

Update - 5.33pm: Sergei Skripal and his daughter Yulia are believed to have been poisoned in Salisbury by a nerve agent, Assistant Commissioner Mark Rowley of the Metropolitan Police said.

Mr Rowley said the poisoning was being treated as attempted murder and said the pair had been “targeted specifically”.