Officers think several Russians were involved in the attempted murder of the former double agent and daughter Yulia in Salisbury and are looking for more than one suspect.Police are still searching homes, a park and other locations in and around Salisbury, and have removed 400 items for examination., after the second incident with nerve agent occurred and a woman, Dawn Sturgess, 44, has died. It is understood Ms Sturgess was exposed to at least 10 times the amount of nerve agent the Skripals came into contact with. Investigators are working to the theory that the substance was in a discarded perfume bottle found by the couple in a park or somewhere in Salisbury city center and Ms Sturgess sprayed Novichok straight on to her skin.
International chemical weapons experts from the Organisation for the Prohibition of Chemical Weapons , the UN watchdog set up to monitor their use, have collected samples from the Sturgess investigation in order to independently verify the British findings. The samples will be sent to two OPCW laboratories and once the results of the analysis are received, a report will be submitted to the UK. On Monday, Russian President Vladimir Putin accused Britain of making baseless allegations that Russia was the source of the nerve agent used in Salisbury.