President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE's former longtime attorney Michael Cohen met Wednesday with prosecutors looking into Trump's family business and charity, CNN reported.

The news outlet spotted Cohen leaving the New York City office of his attorney, Guy Petrillo, where they reportedly met with officials from the New York Attorney General's office.

Assistant U.S. Attorney Tom McKay, who is leading the prosecution of Cohen for bank and tax fraud as well as campaign finance law violations, was spotted entering the building earlier in the day, CNN reported.

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The purpose of the meeting was not immediately clear, CNN reported, and spokespeople for all law enforcement offices involved declined to comment for the report.

The New York attorney general filed a lawsuit in June claiming that the Trump Foundation violated state and federal laws and engaged in persistent self-dealing by using the charity's funds for his 2016 presidential campaign and his businesses.

Trump called the lawsuit "ridiculous" at the time and declared he would not settle the case.

Separately, Cohen has reportedly spent hours sitting sitting for interviews with special counsel Robert Mueller as part of the federal investigation into Russian interference in the 2016 election.

In August, Cohen pleaded guilty in federal court in Manhattan to bank and tax fraud, as well as campaign finance law violations relating to payments to buy the silence of two women claiming they had affairs with Trump in 2006.

Trump has denied the affairs and on Tuesday accused Cohen of lying when the lawyer told the court in New York that he violated campaign finance laws at Trump's direction.

The president dismissed his former lawyer as "a PR person who did small legal work" and said it was "very sad" Cohen decided to plead guilty to "achieve a lighter sentence."

Lanny Davis, a lawyer for Cohen who is also an opinion contributor to The Hill, wrote on Twitter that his client sticks by his account of the payment.

"Under oath @MichaelCohen212 acknowledged and took responsibility for @realdonaldtrump @potus bad behavior. Trump calling anyone a #liar is a compliment!" Davis tweeted Tuesday.

Cohen's reported willingness to cooperate with those looking into Trump and his associates underscores the widening split between the president and his former lawyer.

Cohen, who spent years working at the Trump Organization, re-registered as a Democrat last week, his lawyer said. The former Trump lawyer has also reportedly expressed interest in campaigning for Democrats.