Britain and Russia have each expelled 23 diplomats over the attack as relations between the two countries crash to a post-Cold War low.
LONDON – British Foreign Secretary Boris Johnson said on Sunday that Russia has been stockpiling the deadly nerve agent used to poison a Russian former double agent in England and has been investigating how to use such weapons in assassinations. Britain has said that Russia used the Soviet-era nerve agent called Novichok (Russian for “newcomer”) to attack Sergei Skripal and his daughter Yulia in the first known offensive use of such a weapon on European soil since World War II. Russia has denied any involvement.
