Federal immigration agents carried out the first large-scale arrest operation in nationwide under the newly reinstated Trump administration this week, targeting undocumented immigrants with criminal records.

The Trump administration revoked a policy that prohibited arrests by U.S. Immigration and Customs Enforcement agents at or near schools, places of worship and other places deemed to be "sensitive locations.

Children were kept home from class, while workers made the difficult decision to forgo wages as the threat of ICE raids loomed in the Windy City.

SPRINGFIELD, Ill. - Deportation flights have reportedly begun as Immigration and Customs Enforcement (ICE) increases operations across the country, prompting Illinois and Chicago law enforcement agencies to assess their approach to ICE activities within the state.

President Donald Trump's administration is ramping up its efforts to find and deport undocumented immigrants in Chicago. A new directive could lead to the mayor and other local officials possibly facing arrest due to sanctuary city laws.

Trump campaigned largely on the issue of immigration, promising to carry out mass deportations of roughly 11 million illegal immigrants currently in the U.S.

The Trump administration has planned “post-inauguration” immigration raids in Chicago and other sanctuary cities, according to The Wall Street Journal and The New York Times. The potential raids have students preparing.

The president has stoked fears of a ‘migrant crime’ wave, but a leading scholar says sanctuary policies encourage immigrants to cooperate with police.

The Trump administration authorized federal immigration authorities to target schools and churches, revoking a policy that barred arrests in "sensitive" areas, DHS said.

Here's what we know so far about ICE enforcement operations in the wake of several immigration-related executive orders Trump signed.

CHICAGO (CBS) -- With President Trump having announced plans for an immigration crackdown, a church in Chicago's Pilsen neighborhood is on alert. Pastor Emma Lozano said her members at the Lincoln United Methodist Church, 2009 W. 22nd Pl., are anxious.

White House Press Secretary Karoline Leavitt announced Friday the Trump administration has begun flights to deport illegal migrants from the U.S.