Russian Federation has committed an attack that resulted in the death of a Briton, defense minister Gavin Williamson said on Monday, linking Russian Federation to the incident after a 44 year-old woman who was poisoned by nerve agent Novichok died.
Britain maintains the March attack on the Skripals had been ordered by the Russian government, a charge denied by representatives of Russian President Vladimir Putin.
Ms Sturgess died on Sunday evening, while Mr Rowley is still being treated in hospital.
British Prime Minister Theresa May said she was "appalled and shocked" by Sturgess' death, and Home Secretary Sajid Javid said he was "determined" to catch the killers.
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Britain has openly accused Russian Federation of being responsible for poisoning the Skripals with Novichok, a family of advanced nerve agents developed by the Soviet Union in the 1970 and 1980s.
"Our thoughts are also with the people of Salisbury and Amesbury and the Home Secretary will make a statement shortly including on the support we will continue to provide to the local community throughout this hard time".
He said public health advice was "not to pick up any odd items such as needles, syringes or unusual containers". Officials said they had come into contact with the deadly nerve agent Novichok, which was manufactured in the Soviet Union during the Cold War.
Detectives are working to identify the source of the contamination, police said, but a source has not yet been established.
Local MP John Glen said the local community was "anxious" after police opened a murder inquiry, although health officials have said the danger to the general public is low.
London's Metropolitan Police force said detectives had become a homicide investigation with 44-year-old Dawn Sturgess's death at a hospital in Salisbury.
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Police are continuing to hunt for a contaminated container which they believe was handled by the pair.
Kier Pritchard, head of the county police force in Wiltshire, acknowledged that Sturgess's death "is likely to raise the level of concern in Amesbury and Salisbury".
Not publicly. Police say their "complex" investigation remains ongoing.
It was not until the Wednesday, however, that the government's Defence Science and Technology Laboratory at Porton Down confirmed their exposure to Novichok.
"There can be no doubt what was used and there remains no alternative explanation about who was responsible - only Russian Federation has the means, motive and record", Boris Johnson, Britain's Foreign Affairs Secretary, said in a statement then.
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In this regard, the PML-N has asked different wings of the party to bring maximum people to the Lahore airport on July 13. Supreme leader Nawaz Sharif has said he is coming back to save Pakistan from conspirators.