Moscow( CNN) Russia's Foreign Ministry has angrily repudiated allegations that its top envoy in Washington is a spy amid controversy over meetings he held with US Attorney General Jeff Sessions.

CNN reported Wednesday that Russian ambassador Sergey Kislyak is considered by US intelligence to be one of Russia's top snoops and spy-recruiters in Washington, quoting current and former senior US government officials.

But asked by CNN's team in Moscow about such reports, Russian Foreign Ministry spokeswoman Maria Zakharova insisted Kislyak was “a well-known, world-class diplomat.”

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