Counter terror police investigating the novichok murder of a mother of three, have said they can cannot offer public safety guarantees, as it was revealed the second victim could have just days to live.
Dawn Sturgess died on Sunday evening, nine days after receiving a large dose of the deadly nerve agent, when she picked up a container that had likely been used in the assassination attempt on Russian double agent Sergei Skripal in March.
Her mother said the 44-year-old, who had alcohol and addiction problems, had suffered heart failure after more than a week in intensive care.
Her boyfriend, Charlie Rowley, 45, is currently on life support in Salisbury District Hospital, but is not expected to make a full recovery.
It comes as detectives leading the hunt tonight revealed a car has been removed from an address 30 miles away in Swindon in relation to the ongoing probe.
After spending the afternoon of Friday 29 June shopping and relaxing in Salisbury, Ms Sturgess and Mr Rowley visited her home in John Baker House, before travelling by bus back to his flat eight miles away in Amesbury.
A police spokesman said the bus had been seized by Wiltshire Police and examined at the government's defence laboratory at Porton Down before being given the all clear.
On Saturday 30 June, after Ms Sturgess was taken ill, Mr Rowley travelled in a red Ford Transit van with three other people.
Detectives are desperately trying to locate the source of the contamination - which is believed to be a glass container or syringe - which had lain undetected in Salisbury since the Skripal poisoning in March.
Speaking outside Scotland Yard, Assistant Commissioner Specialist Operations Neil Basu said: "In the four months since the Skripals and [Detective Sergeant] Nick Bailey were poisoned, no other people besides Dawn and Charlie have presented with symptoms.
"Their reaction was so severe, it resulted in Dawn’s death and Charlie being critically ill. This means that they must have got a high dose and our hypothesis is that they must have handled a container we are now seeking."
telegraph.co.uk