Russia spy row: Ambassador says UK lab could be poison source

Russia's EU ambassador has suggested a UK research laboratory could be the source of the nerve agent used in the attack on an ex-spy and his daughter.

Vladimir Chizhov told the BBC's Andrew Marr Show that Russia had "nothing to do" with the poisoning in Salisbury of Sergei Skripal and his daughter Yulia.

He said Russia did not stockpile the poison and that the Porton Down lab was only eight miles (12km) from the city.

The government dismissed his comments as "nonsense."