with Anna Foster
The security minister Ben Wallace insists it is 'beyond reasonable doubt' that Russia was behind the use of a nerve agent in Salisbury.
Russia's foreign minister, Sergei Lavrov, has attacked Britain's claims that Russia was behind the Salisbury nerve agent attack. We speak to a chemical weapons expert who insists the Kremlin was involved. As the number of people killed in London this year rises above 50, we ask how other cities have tried to reduce violence. Plus we're live at the Commonwealth Games, for all the latest action.