Both RT and Sputnik suggested that the US might have been behind the poisoning because it had could have had access to the chemical plants that produced Novichok.
While neither outlet accused the US outright, both wrote articles heavily implying that the US could possess the knowledge and materials for Novichok.
Both cited a 1999 article from The New York Times, which reported that the US had been given access to a research site that made the nerve agent.
"Is Russia the only place it could come from?" RT asked, while Sputnik re-reported The New York Times' story.
Markov, the Institute of Political Studies director, was less subtle.
He told Al Jazeera:
"Novichok had been produced in Uzbekistan in the Soviet times and after the fall of the Soviet Union, as we know, the American intelligence services had access to this factory.
"The American and British intelligence services have a very strong cooperation with each other, and I am sure 100% that the British got this Novichok nerve agent from them for this provocation."