As former Russian double agent Sergei Skripal and daughter Yulia remain in critical condition after being found slumped unconscious on a bench in Salisbury on Sunday, UK authorities are issuing an appeal. "The weather was poor that day so there were not as many people out and about," says the head of counter terrorism policing in asking anyone who did brave the weather—particularly those who went to the nearby Zizzi restaurant or Bishop's Mill pub, where Reuters reports the two were thought to have stopped—to come forward with any details they can recall from that afternoon. "Every statement we can take is important."
- For now, the two are being treated for "symptoms rather than causes," as scientists at Porton Down, the country's military research facility, are trying to identify an unknown substance the pair are suspected to have been exposed to, the BBC reports. Reuters suggests progress has been made on that front, and quotes the country's interior minister as saying, "We do know more about the substance and the police will be making a further statement this afternoon in order to share some of that."