The FBI executed a search warrant Wednesday morning at a Washington Post reporter’s home as part of an investigation into a government contractor accused of illegally retaining classified government materials.

The reporter, Hannah Natanson, was at her home in Virginia at the time of the search. Federal agents searched her home and her devices. The warrant said that law enforcement was investigating Aurelio Perez-Lugones, a system administrator in Maryland who has a top secret security clearance and has been accused of accessing and taking home classified intelligence reports that were found in his lunchbox and his basement, according to an FBI affidavit.