The military-grade nerve agent that left former Russian double agent Sergei Skripal and his daughter near death appears to have been left on his front door in Salisbury, England, police say. Investigators say the Skripals first came into contact with the nerve agent at Skripal's home, and the highest concentration of it was found on the door, the Guardian reports. Skripal and his daughter, Yulia, were found unconscious on a bench at an outdoor shopping complex on March 4. Detective Sergeant Nick Bailey, who was hospitalized for more than two weeks after the incident, is believed to have become sick after visiting the Skripal house, where he was one of the first on the scene, reports the Telegraph.
Police say residents of Skripal's neighborhood can expect more searches in the area, but "the risk remains low." Britain blames Russia for the attack. It has expelled 23 Russian diplomats and numerous other countries, including the US, have followed suit. In a speech late Wednesday, British Foreign Secretary Boris Johnson thanked Britain's allies "from the bottom of his heart," CNN reports. "I believe that these expulsions represent a moment when a feeling has suddenly crystallized, when years of vexation and provocation have worn collective patience to (the) breaking point, and when across the world—across three continents—there are countries who are willing to say enough is enough," he said. (A relative says there is almost no chance the Skripals will survive.)