The FBI believes the Massachusetts Air National Guard member accused of posting classified military documents online likely has more documents.
Jack Teixeira was charged on Friday with retaining and transmitting national defense information without authorization, and the investigation is continuing.
Teixeira was part of the 102nd Intelligence Wing at Otis Air Force Base, and in 2021 was granted top-secret security clearance.
The 21-year-old remains in custody and will return to Boston federal court on Wednesday for a detention hearing.
The documents leaked reveal info about the war in Ukraine and even show that there were four more Chinese spy balloons.