Presidential lawyer Rudy Giuliani on Tuesday refused to say why the company of an indicted associate paid him $500,000 last year, while that associate was helping him dig up dirt in Ukraine against Democrats other than to deny the two matters were connected.

Giuliani, as Reuters first reported , was paid for consulting work he did for Fraud Guarantee, a Florida-based company run by Lev Parnas. Parnas, who was born in Ukraine, and Igor Fruman, a native of Belarus, were indicted last week on charges that they fraudulently made straw campaign contributions and funneled foreign money to support Donald Trump and other Republican candidates.

Parnas, Fruman and Giuliani also worked together to undermine former Vice President Joe Biden , as well as Marie Yovanovitch, the former U.S. ambassador to Ukraine who was abruptly removed earlier this year.

But Giuliani, who says he has been representing Trump for free since April 2018, said Tuesday that the $500,000 in work he did for Fraud Guarantee was unconnected to his work on behalf of the president, and that the money did not come from overseas.

Its totally domestic 100 percent domestic. ... Thats all I can give you right now, Giuliani told HuffPost Tuesday. It had nothing to with campaign finance. It has nothing to do with Ukraine.

Giuliani said his Fraud Guarantee work involved consulting on two technologies he is familiar with, and called it unrelated 100 percent to anything he had been doing for Trump. He said he got the referral through a lawyer he knows. We did an intense amount of work for them, he said. Theyre proprietary technologies, and I cant comment.

Parnas and Fruman were arrested at Dulles Airport in Virginia last week as they waited to board a flight leaving the country. Hours earlier, they had lunched with Giuliani at Trumps hotel in Washington, just five blocks from the White House.

The Wall Street Journal reported that federal investigators in the Southern District of New York the office Giuliani used to head in the 1980s have examined Giulianis bank records. Giuliani said he is aware of the report, but has no knowledge of an investigation. I have no idea if I am or I am not. I havent gotten any calls, he said. If they are conducting any investigation and they are leaking it right at the beginning, I have to question the motives of their investigation.

Giuliani has accused Bidens son Hunter of using that family relationship to make money from foreign sources that hoped to affect U.S. policy and advance their own business interests.

Giuliani, though, denied there was any similarity between Hunter Bidens situation and his, even though Parnas appears to have been interested in Giuliani largely as a way to get close to Trump.

Theres no comparison, Giuliani said, pointing to his years as New York City mayor and a prosecutor before that. I have a 55-year-long career of being one of the best lawyers in America. ... I am not someone without talent.