Traces of a nerve agent used in an attack on the Russian former spy Sergei Skripal have reportedly been found in the Zizzi restaurant in Salisbury.
Skripal and his daughter, Yulia, who is also critically ill, ate in the restaurant hours before they were found unconscious last Sunday. On Monday, Wiltshire police said the restaurant, on Castle Street, had been closed “as a precaution”, and it remains cordoned off.
An ongoing forensic examination uncovered the substance in Zizzi, according to the BBC, which reported that no one else who was in the restaurant at the same time as the Skripals is believed to be in danger. It also said there was no suggestion that any diners were connected to the nerve agent.
The Metropolitan police, who are leading the investigation, have refused to comment on the report.
The home secretary, Amber Rudd, has said that police have identified more than 240 witnesses and 200 pieces of evidence. The Ministry of Defence said armed forces personnel would be returning to Salisbury to assist for a third day on Sunday.