Kay Burley was refereeing a discussion between the former Kremlin advisor and a Director of the Russia Studies Centre when the fiery clash erupted.
The Sky News presenter quickly snapped at the former Russian advisor as she tried to get Dr Andrew Foxall’s response to claims there was no evidence Russia carried out the attack.
Alexander Nekrassov, the former Kremlin advisor, said there was no proof that Russia had carried out the attack as he ridiculed Britain’s handling of the incident.
Sky News host Burley said: “Just a quick thought Alexander, while we have got you. Russians have released a nerve agent on British soil.
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