Prime Minister Theresa May will chair a meeting of Britain's National Security Council on Monday to discuss the poisoning of a former Russian double agent and his daughter.
Former double agent Sergei Skripal (66), and his daughter Yulia (33), have been in hospital in a critical condition since March 4 when they were found unconscious on a bench outside a shopping centre in the southern English city of Salisbury.
Hundreds of people who visited the Zizzi restaurant or the Bishop's Mill pub in the normally quiet cathedral city were told on Sunday to wash their clothes after traces of nerve agent used to attack Skripal were found at both sites.
