U.S. Border Patrol official involved with the operation, who spoke on the condition of anonymity because he was not authorized to discuss the matter publicly, said that the effort involved nearly 300 federal agents from various agencies. The agents came from various directions around the building.
The operation that night targeted an apartment complex that federal officials said was frequented by members of the Tren de Aragua gang. The Border Patrol official said that snipers rappelled down from helicopters on top of the apartment complex, as a precaution from potential violence. Federal authorities said that at least 37 people without legal immigration status were arrested.
Since early September, when the Trump administration announced the immigration crackdown in the Chicago area, calling it Operation Midway Blitz, agents have arrested more than 800 people, the Department of Homeland Security said.
