FBI agents are searching the Charlotte, North Carolina home of Paula Broadwell, whose affair with retired general David Petraeus led to his resignation as director of the Central Intelligence Agency.

Agents reportedly arrived at Paula Broadwell’s home at about 10 p.m. on Monday carrying a load of boxes. Agents appeared to be rummaging through every room of the house, taking pictures and filling boxes with various items from inside, according to reporters on the scene.

The FBI has declined to comment on the specific reason for the agents’ late-night search of Paula Broadwell’s home, which was still underway after midnight.

The search is likely related to an ongoing criminal investigation into harassing emails sent from email accounts linked to Paula Broadwell, a 40-year-old mother of two.

FBI agents are searching the Charlotte home of Paula Broadwell, whose affair with retired general David Petraeus led to his resignation as CIA director

Paula Broadwell sent the emails to 37-year-old Jill Kelley of Tampa, Florida, in which she cryptically warned her to stay away from David Petraeus.

Paula Broadwell, who wrote a biography on David Petraeus, was involved in an affair with the four-star general at the time and she believed that Jill Kelley was a potential love rival.

Jill Kelley, a housewife who organizes social events for military personnel, has said that she and David Petraeus were only acquaintances.

The FBI conducted an investigation into the emails and were shocked to learn how much access that Paula Broadwell appeared to have to David Petraeus, officials said. The federal agency eventually determined that no national security secrets had been breached by the relationship, however they did find classified materials on Paula Broadwell’s computer.