The nerve agent used to poison Sergei and Yulia Skripal in Salisbury was delivered “in a liquid form”, it has been revealed.
The Department for Environment said one primary location was targeted – the Skripal’s Wiltshire home.
Salisbury cemetery, where the remains of the ex-spy’s wife and son rest. was not targeted.
The details emerged as the department announced a major clean-up operation was under way across the city “to bring a small number of potentially contaminated sites back into safe use” for residents and tourists.