Secretary of Homeland Security Kristi Noem was in New York as immigration raids occurred. At least four people were taken into custody, according to sources. CBS News' Jason Allen reports on deportation flights,

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

U.S. Immigration and Customs Enforcement ( ICE) announced Sunday that it has launched coordinated "targeted operations" in Chicago, in partnership with several federal agencies, to enforce immigration laws and "preserve public safety and national security."

The North Texas-based TV host was embedded with U.S. immigration enforcement officers during an operation in Chicago Sunday.

Phil McGraw, the television host known as "Dr. Phil," embedded with ICE agents in Chicago to film raids as Trump ramps up deportations.

DHS Secretary Noem rode alongside federal agents targeting a high-profile Venezuelan gang member during immigration enforcement in the Bronx.

Border czar' says ICE wouldn't need to enter communities if local law enforcement worked with the agency to target criminals.

A range of federal agencies conducted "enhanced targeted operations" in Chicago Sunday "to enforce U.S. immigration law and preserve public safety," a spokesperson for Immigration and Customs Enforcement said.

The incident illustrates the climate of fear permeating the country as Trump readies ICE and other federal authorities to carry out his plan for mass deportations.

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.

Top Trump administration officials visited Chicago on Sunday to witness the start of ramped-up immigration enforcement in the nation’s third-largest city as federal agencies touted arrests around the country.