The FBI was searching the home of former national security adviser John Bolton, who has become a critic of President Trump, according to news reports.

Sources familiar with the matter told ABC News that the search, carried out by the FBI, was related to allegations that Bolton is in possession of classified records.

The FBI conducted a court-authorized search at John Bolton’s home as part of a national security investigation into whether he disclosed classified information in his 2020 book, according to two people familiar with the matter.