Russia has denied producing or researching nerve agents known as Novichok. Russia was once believed to possess thousands of tonnes of weaponised Novichok varieties and their precursors. Watch report.

Russia denies producing Novichok: West spreading misinformation

Russian PM: Skripal betrayed Russia; calls him a "Scumbag" 

British Prime Minister Theresa May said on March 12 that Sergei Skripal and his daughter Yulia had been poisoned with a military-grade nerve agent

Ex-Russian spy poisoning: Chemical weapons agency confirms UK findings

The tests will be conducted by international chemical weapons inspectors on a suspected nerve agent used to poison a former Russian spy in England

Moscow will accept results of nerve agent tests, if process is transparent: Russia's UK envoy

The talks at the Organisation for the Prohibition of Chemical Weapons (OPCW) have been requested by Moscow

Chemical watchdog to meet over spy nerve agent claims

Britain has said Russia used the Soviet-era nerve agent called Novichok to attack Sergei Skripal and his daughter Yulia

Britain accuses Russia of secretly stockpiling deadly nerve agent used in attack

British Prime Minister Theresa May on Monday stated that it was 'highly likely' Russia was to blame for the attack

Ex-spy poisoning: Trump backs UK

The Russian government has denied the allegations.

Russia was likely responsible for UK nerve agent attack: Rex Tillerson

Scientific tests by government experts have identified the specific nerve agent used

UK police confirm Russian ex-spy, daughter hit by nerve agent

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