>> A British woman died on Sunday after being exposed to the nerve agent, Novichok. That's the same substance that struck an ex-Russian spy in March. 44 year old, Dawn Sturgess was a mother of three and was exposed to the poison in Western England a little more than a week ago.
It was only a few miles from where Russian double agent Sergei Skripal and his daughter were attacked with Novichok but survived.>> The staff here at Salisbury District Hospital worked tirelessly to save Dawn. Our staff are talented, dedicated and professional and I know that they will be hurting too.
They did everything that they could. We continue to treat one other individual, who remains in a critical condition.>> Police say the death of Sturgess is being treated as a murder. They're looking at how she and a 45-year old man that media have identified as Charlie Rowley came across an item contaminated with the agent.
It's a poison that was developed by the Soviet Union's military during the Cold War. Police are still trying to work out how the two cases may be linked. Authorities say,there's no evidence the pair visited any of the sites decontaminated after the first poisoning. The attack on Skripal sparked the biggest expulsion of Russian diplomats in the West since the Cold War Era, with allies siding with Britain's view that Moscow was either responsible or had lost control of the poison.
Russia hit back by kicking out Western diplomats. Moscow has denied any involvement in the Skripal case and has suggested British security services carried out the attack to incite anti-Russian hysteria.