US authorities conducted a predawn raid Monday on the Washington-area home of Democratic Representative Ilhan Omar in a probe of the Somali-born lawmaker's immigration paperwork, Fox News Digital reported, citing a source familiar with the move.

The news outlet reported that the raid followed a criminal fraud investigation into the Minnesota lawmaker's paperwork, filled out by her late father when she was a child.

Federal agents wearing Homeland Security Investigations (HSI) jackets were seen outside of Omar’s home at around 6 a.m. local time

"Today in the Washington, DC area, Homeland Security Investigations executed a judicially authorized search warrant secured by the Department of Justice. This enforcement action is part of an ongoing federal investigation," a Department of Justice spokesperson told Fox News Digital.

The Justice Department did not immediately return a request for comment. A representative for Omar did not immediately respond to a request for comment.

This is a developing story.