A federal grand jury has issued a subpoena to Daniel Richman, a longtime friend and former adviser to ex-FBI Director James Comey, as part of a new investigation into allegations that Comey leaked classified information to the media. The subpoena, issued Monday, indicates the Justice Department is reviving a probe into the matter.

The investigation targets Comey's alleged release of classified information to The New York Times. This issue was previously examined during President Donald Trump's first term. The investigation was reportedly halted when President Joe Biden took office, but the current grand jury action suggests it has been reopened.

This revived inquiry is separate from another investigation focused on allegations that Comey threatened Trump. The details of the specific classified information and the nature of the alleged leaks remain unclear.