The Los Angeles-based Drug Enforcement Administration headquarters said it’s cooperating with federal law enforcement entities on immigration enforcement efforts.

Border czar Tom Homan told NBC News that several people with criminal convictions were apprehended in Chicago.

Targeted immigration enforcement operations by multiple agencies were launched in Chicago Sunday, with top Trump administration officials in the city to oversee it all. One of President Trump's many campaign slogans was,

Nearly 1,000 people were arrested by federal agencies in a blitz to enforce immigrations policies across the United States, according to multiple reports.

Immigration operations were taking place all over the country less than a week after President Trump was sworn in.