With two top Trump administration officials in Chicago, federal law enforcement began a “targeted” immigration blitz Sunday, according to a spokesman for U.S. Immigration and Customs Enforcement. The agency did not say how many arrests have taken place so far.

The sheer number of federal agencies involved showed President Donald Trump’s willingness to use federal law enforcement beyond the Department of Homeland Security to carry out his long-promised

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

Targeted immigration enforcement operations by multiple agencies were launched in Chicago Sunday, with top Trump administration officials in the city to oversee the operation. Multiple sources told CBS News Chicago that those held by ICE Sunday have active warrants.

Acting U.S. Deputy Attorney General Emil Bove and Border Czar Tom Homan oversaw immigration enforcement efforts in Chicago on Sunday, as efforts got underway across the country.

Acting Deputy Attorney General Emil Bove visited Chicago on Sunday to witness the start of ramped-up immigration enforcementin the nation's third-largest city promised by the Trump administration, though few details of the operation were made public.

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.