You're reading: RFE/RL: Russia lashes out as Britain readies response over nerve-agent poisoning

Russia has lashed out at Britain ahead of an expected announcement by Prime Minister Theresa May on measures against Moscow, which ignored a midnight deadline to explain how a nerve agent developed during the Cold War was used to poison a former Russian spy in Britain.

The United States, European Union, and NATO all said they supported Britain after May said it was “highly likely” that Russia was behind the poisoning of Sergei Skripal and his daughter with a deadly chemical substance developed by the Soviet military — part of a group of nerve agents known as Novichok.

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