FILE PHOTO: Former National Security Advisor John Bolton listens to a question from a student at the John F. Kennedy Jr Forum at the Kennedy School of Government at Harvard University in Cambridge, Massachusetts, U.S., September 29, 2025. REUTERS/Brian Snyder/File Photo

WASHINGTON (Reuters) -John Bolton, President Donald Trump's former national security adviser who later became a critic, has been indicted by a federal grand jury in Maryland, CNN reported on Thursday, citing two sources.

(Reporting by Kanishka Singh in Washington)