Immigration and Customs Enforcement, along with several other federal agencies, began what they called "enhanced targeted operations" on Sunday in Chicago.

Minutes later, with federal immigration agents banging on the front door of her apartment in Chicago’s Hermosa neighborhood, she had an answer. Maria’s husband was one of an as-yet-unknown number of people taken into custody Sunday morning in what appeared to be the opening salvo in the long-promised — and much-feared — federal immigration blitz on Chicago.

Chicago residents, especially in immigrant circles, have been on edge for months in anticipation of large-scale arrests touted by the Trump administration.

Multiple Chicago immigrant advocacy groups have filed a lawsuit against Immigration Customs and Enforcement leaders, saying "the administration's announced raids are retaliatory in nature and violate the First Amendment.

Immigrant advocacy groups in Chicago filed a lawsuit Saturday morning against the Trump administration and U.S. Immigration and Customs Enforcement (ICE) over planned deportation raids.

Top Trump administration officials, including “border czar” Tom Homan and the acting deputy attorney general, visited Chicago on Sunday to witness the start of ramped-up immigration enforcement.

Ald. Byron Sigcho-Lopez (25th) said the fear is heightened that Immigration and Customs Enforcement will target schools, hospitals, and churches.

The Trump administration launched an immigration enforcement blitz in Chicago on Sunday that includes several federal agencies that have been granted additional authorities to arrest undocumented immigrants in the US,

The number of arrests was uncertain. Illinois officials, including the governor, said they had not been given advance notice.

Acting Deputy Attorney General Emil Bove, appointed by President Donald Trump, will oversee the efforts of the FBI, DEA, ATF, U.S. Marshall Service, and federal prosecutors.