Britain says the pair were poisoned with a Soviet-developed form of nerve agent known as Novichok. Moscow is awaiting nearly two dozen Russian diplomats ordered to leave Britain as part of a standoff over the nerve agent attack. The EU on Monday condemned the poisoning and called on Russia to "address urgently" British questions over the Novichok nerve agent program. International chemical weapons experts are due to take samples of the nerve agent used, which Britain says is the Soviet-developed Novichok. A week after the Skripal poisonings, London-based Russian businessman Nikolai Glushkov was found dead at his home.

Source: CBC News March 20, 2018 13:24 UTC