Moscow (CNN) A Belarusian model who claimed to have information on Moscow's attempts to interfere in US elections told CNN she had been ordered by Russian security agents to keep silent about her dealings with a Russian billionaire linked to the former chairman of Donald Trump's campaign.

Anastasia Vashukevich, a self-styled "sex coach," made international headlines after she was arrested in Thailand last year and claimed to have obtained secret recordings during an affair with oligarch Olig Deripaska which allegedly shed light on US President Donald Trump's links to Russia.

In an exclusive interview with CNN on Tuesday, Vashukevich said she was instructed by Russian security services not to talk about Deripaska, an ex-business associate of former Trump campaign chairman Paul Manafort.

"I had some talk when I was in Russian jail," she said. "And they explained to me very clear(ly) what should I do, what should I say and what I shouldn't say."

Asked who explained that to her, Vashukevich said "Russian agents," adding, "They said to me, 'Don't touch Oleg Deripaska anymore.'"

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