May is due to visit Salisbury, the scene of the nerve agent attack.
Putin continues to campaign ahead of Sunday's elections, which he is expected to win.
In London, opposition Labour Party leader Jeremy Corbyn struck a starkly different tone to that of the British government by warning against rushing into a new Cold War before full evidence of Moscow's culpability was proven.
Russian Federation also suspects foul play in Glushkov's death and opened its own inquiry Friday.
The prime minister greeted residents and the emergency services and repeated he conclusion that it was "very clear" that Russian Federation was behind the attempted murder of Sergei and Yulia Skripal. He was later granted British citizenship. Both are in critical condition.
"No one here believes this was a Russian attack".
But to the West, they are raising similar concerns.
President Donald Trump said Thursday it "certainly looks like" the Kremlin was behind the nerve agent attack on a former Russian spy in England last week, adding that the USA takes the matter "very seriously".
"The 23 expelled diplomats have been identified as under-clad intelligence officers", Asquith said. Presidential spokesman Dmitry Peskov earlier said Vladimir Putin would ultimately choose the option that "most suits Moscow's interests". "All the steps will be well thought out", he told reporters.
Lithuanian Foreign Minister Linas Linkevicius told The Associated Press that the Salisbury attack was a direct challenge to Europe.
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A rep for the Academy and Bailey did not immediately return Fox News' requests for comment. When asked about that by Variety past year , Bailey said, "What you just said is bulls-".
May said Russia's "response has demonstrated complete disdain for the gravity of these events".
Russian Federation insists it was not involved, despite Britain's assertion that the nerve agent was one first produced in the former Soviet Union.
In particular, the statement calls on Russian Federation to "provide full and complete disclosure" of its chemical weapons program. Hundreds more have been warned about possible exposure to the nerve agent. It said Britain would not have to wait long for Russia's response. The Organization for the Prohibition of Chemical Weapons also says it expects action soon in response to the British investigation.
Speaking to the AP, he called it unlikely that some of the nerve agent could have gone missing in the years after the 1991 collapse of the Soviet Union.
She will meet members of the public, businesses and emergency services personnel in the southwestern English city of Salisbury, where Sergei Skripal and his daughter were poisoned on March 4.
Any effective Security Council action seems highly unlikely, however, given that Russian Federation, like Britain and the United States, is a permanent, veto-wielding member of the body.
Ironically, some speculate it was Rex Tillerson's insistence the nerve agent "clearly came from Russia" that got the secretary of state fired.just about 13 hours after his statement.
She said it was "highly likely" Russian Federation was to blame for the attack.
"This represents an unlawful use of force by the Russian state against the United Kingdom", May said.
Lawless reported from London.