"Making a linking to these events (the British poisoning) is for us unacceptable and such restrictions like those passed by the American side earlier ... are absolutely illegal and do not correspond to worldwide law", said Kremlin spokesman Dmitry Peskov, according to a Reuters report.
Russian Foreign Ministry spokeswoman Maria Zakharova leading a briefing, February 10, 2016.
In March, two weeks after the Skripal attack, President Trump signed a statement, together with the leaders of France, Germany, and Britain, blaming Russia for the assassination attempt on the former Russian military officer, who was convicted of spying for Britain.
The official told reporters that the administration made a decision to impose a "presumption of denial" for the sale to Russian Federation of "national security sensitive" United States technologies that require federal government approval.
Russia is already under USA sanctions for its 2014 invasion of Crimea, and the Trump administration expelled 60 Russians from the US and shuttered the Russian consulate in Seattle in response to the failed assassination attempt.
Russia's financial stability assessments from the independent worldwide observers highlight risks and further slowdown in growth.
Sturgess, 44, died a week after the exposure. "So linking these events is unacceptable to us, and just as with previous USA sanctions we believe are absolutely illegal and against worldwide law", Peskov told reporters.
Konstantin Kosachev, the chairman of the foreign affairs committee in the upper house of the Russian parliament, said Thursday that the USA has behaved like a "police state, threatening and torturing a suspect to get evidence". Among other measures, it would put sanctions on any transactions related to Russian energy projects and new Russian sovereign debt, as well ban American individuals and businesses from working with Russian oil projects.
Analysts in Moscow said it was highly unlikely that Putin would allow inspectors to enter the country to head off the additional sanctions, since doing so would look like succumbing to US pressure.
A Downing Street spokesman said: 'The UK welcomes this further action by our U.S. allies.
Nearly 700 Russian people and companies now are under USA sanctions. A ban on Aeroflot flights to the United States could lead to a ban on USA airlines traversing Russian airspace. British police scoured sections of Salisbury and Amesbury in southwest England, searching for a container feared to be contaminated with traces of the deadly nerve agent Novichok.
"The mandatory sanctions that follow this determination are key to increasing pressure on Russia", Royce said.
The U.S. move also triggered a sell-off in Russian government bonds and the dollar-denominated RTS index fell to its lowest since April 11.
While criticized as too keen to strike up a friendship with Putin, Trump maintains that he's been tough on Moscow.
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