Homeland Security Investigations raided the home of Rep. Ilhan Omar, D-Minn., early Monday morning as part of a criminal fraud investigation into her immigration paperwork. A source familiar with the matter told Fox News Digital that the probe centers on documents filled out by Omar's late father when she was a child.

Two sources close to the investigation confirmed the details of the probe on Thursday. This disclosure followed remarks made in mid-September by border czar Tom Homan, who stated that the progressive congresswoman was subject to an ongoing criminal investigation.

A Department of Justice spokesperson told Fox News Digital that HSI executed a judicially authorized search warrant in the Washington, D.C., area. The agency described the enforcement action as part of an ongoing federal investigation. The story is developing.