Washington imposed an initial batch of sanctions last year on Moscow after determining that Moscow had used a nerve agent against a former Russian double agent, Sergei Skripal, and his daughter Yulia, in Britain, which Moscow denies.
One year ago, on March the 4th, the former Russian double-agent Sergei Skripal and his daughter Yulia were rushed to hospital after poisoned with a chemical nerve agent in the British city of Salisbury.
The poisoning of a former Russian double agent, Sergai Skripal, in the British city of Salisbury stunned the world this year.
Investigative website Bellingcat named the second suspect in the poisoning of former Russian spy Sergei Skripal as Alexander Yevgenyevich Mishkin who was charged by Britain last month under the name of Alexander Petrov.
Alexander Petrov and Ruslan Boshirov, two suspected members of Russian military intelligence, are accused of trying to kill former Russian spy Skripal and his daughter with the Novichok nerve agent in March.
As Western countries back UK's findings, British Ambassador Karen Pierce and Russian Ambassador Vassily Nebenzia traded accusations at a UN Security Council meeting held to discuss the Novichok attack investigation and charges against two Russians.
Sergei Skripal, a former colonel in Russian military intelligence who betrayed dozens of agents to Britain's MI6 foreign spy service, and his daughter Yulia, were found unconscious on a public bench in the southern city of Salisbury on March 4.
Dawn Sturgess, 44, was exposed to the nerve agent, the same substance used to poison former Russian spy and his daughter in March. Meanwhile, Russia says presence of poisonous substance "danger not only for the British, but for other Europeans."
A British woman and man were hospitalised after being found unwell on Saturday near Salisbury where a former double agent Sergei Skripal and his daughter were attacked in March.
The daughter of ex Russian spy Sergei Skripal, has appeared on camera since the pair were found slumped on a bench in Salisbury, UK. The incident is being treated as a suspected Russian chemical attack.
Russia's approach to the OPCW came after a British laboratory said it had not proved that Russia manufactured a deadly nerve agent used to poison a former Russian spy.
Russia says it won't respond to Britain's calls to explain its role in the UK spy poisoning attack until it receives samples of the chemical at the centre of the incident.
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