The new Russian Ambassador to the United States, Anatoly Antonov, said that a recent phone call between President Donald Trump and Russian President Vladimir Putin was “warm.”

“What I know, I know official reports from Kremlin, from Minister of Foreign Affairs, it was constructive conversation,” Antonov told NBC’s Savannah Guthrie. “Could I add, even, that it was warm conversation.”

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Guthrie asked Antonov to clarify that it was warm, and he said that it was from his own perspective, though it was not in the official report.

“If you look at the substance of this conversation, our two presidents have discussed the real problems we face today and how it is important to united our efforts to tackle these challenges to our security — to security of the United States people as well as Russian people,” Antonov said.

Antonov’s take comes shortly after reports of tension between Trump and Putin, as Trump recently took care to make sure his aides did not publicize the United States giving weapons to Ukraine to help the country’s effort against separatists.