A raid of the home of Rep. Ilhan Omar (D-MN) on Monday morning by federal agents, reportedly as part of an immigration fraud probe, is raising fresh questions about the circumstances of her family’s arrival in the United States more than 30 years ago.

Sources told Fox News that the early-morning search of Omar’s residence in Washington, D.C., stems from a criminal fraud investigation into the congresswoman’s immigration paperwork filed by her late father when she was a child.