The FBI’s year-long investigation of Hillary Clinton’s private email server uncovered tens of thousands more documents from her time as secretary of state that were not previously disclosed by her attorneys. The State Department is expected to discuss when and how it will release the emails Monday morning in federal court.

The total — confirmed by the Justice Department — was disclosed by a conservative legal group after the State Department said last week that it would hand over the emails. The number to be released is nearly 50 percent more than the 30,000-plus that Clinton’s lawyers deemed work-related and returned to the department in December 2014.

Lawyers for the State Department and Judicial Watch, the legal group, said in an Aug. 12 court filing that they intended to negotiate a plan for the release, part of a civil public records lawsuit before U.S. District Judge James E. Boasberg of Washington.