According to a Fox News report, which was confirmed by Senate Judiciary Committee Chair Chuck Grassley, the U.S. Department of Justice has launched a formal inquiry into whether former Secretary of State Hillary Clinton and her aides mishandled classified information while she was the secretary. The department’s investigation aims to determine whether Clinton and her closest aides violated government protocols by using her private server to receive, hold and transmit classified and top-secret government documents. The department declined to say when its inquiry began, but it follows the conclusion of the FBI’s probe into the matter, which did not result in any actions being taken against Clinton or any of her aides.

During the FBI’s investigation of Clinton’s use of top-secret and classified information on her private server, Comey said there were seven email chains on Clinton’s computer that were classified at the “Top Secret/Special Access Program level.” Another 2,000 emails on her private server were found to have contained information deemed classified now, though not marked classified when sent. In addition, the server also contained 22 top-secret emails deemed too damaging to national security to be released.

Despite the investigation, Hillary Clinton and some of her aides still enjoy top security clearance. Depending on the outcome of the current State Department inquiry, Clinton and her aides could have their access to sensitive government documents terminated.