The former personal attorney for President Donald Trump has entered into an agreement with New York City prosecutors to provide information about the president’s business operation, a source familiar with the situation told NBC News Wednesday.

The Manhattan District Attorney’s office is investigating the possibility that the Trump Organization falsified business records, the source said.

Representatives from the District Attorney’s office met with Cohen on Aug. 20 at Otisville Prison, in upstate New York, where he’s serving a three-year sentence, according to the source.