US President Donald Trump declared on Monday that he has “never” worked on behalf of Russia after bombshell reports were published on his alleged ties to the Kremlin.

“I never worked for Russia and you know that answer better than anybody,” Trump told reporters at the White House. “It’s a disgrace that you even ask that question. It’s all a big fat hoax.”

The FBI investigated suspicions that Trump might be acting on Russia’s behalf after he sacked the bureau’s director in 2017. A separate Washington Post report said that Trump had also aroused concerns by going to unusual lengths to prevent even his close aides from knowing the contents of conversations he had during summits with President Vladimir Putin.

Trump said, stressing that he has “those meetings one on one with all leaders.” “I have relationships with almost everybody and that’s a good thing not a bad thing,” he said.