The operation began at a home and later extended to the school grounds.The agency stressed that it only investigates threats, does not enforce immigration laws.

Nearly 500 shipments containing just over 15,000 weapon-modifying devices or Glock switches were recovered by Customs and Border Protection agents in Chicago. The CBP says the majority of the shipments came from China.

CBP One, a border app that has allowed nearly 1 million people to legally enter the United States with eligibility to work, was abruptly shut down on Monday, shortly after President-elect Donald Trump took office.

Most of the Glock switch shipments had come from China, and were destined for various locations throughout the United States, CPB said.

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 Trump administration Monday ended use of a border app called CBP One that has allowed nearly 1 million people to legally enter the United States with eligibility to work. A notice on the ...

The CBP One app has been highly popular, functioning as an online lottery system that grants appointments to 1,450 people daily at eight border crossings. These individuals enter the U.S. under immigration "parole," a presidential authority that Joe Biden has exercised more frequently than any other president since its creation in 1952.

More than 1,500 weapon-modifying devices were seized by U.S. Customs and Border Protection (CBP) officers stationed in Chicago last year. According to the CBP, offices stationed in

Enhanced immigration enforcement operations were reported in Chicago and parts of Illinois starting on Sunday and were expected to continue through the week as federal agencies touted arrests around the country.

U.S Immigrations and Customs Enforcement officially launched "enhanced targeted operations" in Chicago Sunday, following a weeklong frenzy of reported sightings since President Trump’s inauguration.

ICE reported 956 arrests on Sunday, 286 on Saturday, and 593 on Friday. Border czar Tom Homan says this is only the beginning.