Sergei Skripal

Russian President Vladimir Putin has labelled poisoned ex-Russian spy Sergei Skripal a "traitor" and a "scumbag".

'I'm waiting for the phone call from the Russian state,' British security minister says

A man and woman found unconscious in Wiltshire were poisoned by Novichok, the same nerve agent as ex-Russian spy Sergei Skripal, police say.

A former Moscow scientist, who helped develop Novichok, said the nerve agent is less effective in damp air

Russia has nothing to do with the alleged poisoning of Russian ex-double agent Sergei Skripal, the Kremlin said. Moscow will not accept any groundless threats or ultimatums, it added.

Britain has given Moscow two days to explain the alleged use of a military-grade nerve agent from Russia to poison former double agent Sergei Skripal. PM Theresa May says it is "highly likely" Russia was responsible.

A man who is critically ill after being exposed to an unknown substance in Wiltshire is a Russian national convicted of spying for Britain, the BBC understands.