Chicago federal intervention: Tracking surge in immigration enforcement operations | Updates

On Monday afternoon, U.S. Immigration and Customs Enforcement posted a photo on X of an SUV with "ICE" on its side, parked near the Willis Tower downtown Chicago.

"CHICAGO: a sanctuary city that attracts and protects criminal illegal aliens to the detriment of law-abiding citizens. In an ICE-led operation, we are here to remove these dangerous public safety threats from American communities," the post said.

On Monday, the Department of Homeland Security announced the immigration operation "Midway Blitz" in Chicago and Illinois.

The operation is "in honor of" 20-year-old Katherine Abraham and Chloe Polzin, 21 of Deerfield.

Both died in an alleged drunk driving hit-and-run crash in Urbana, Illinois.

READ MORE | ICE operation 'Midway Blitz' named for Illinois DUI crash victim; undocumented man charged in death

Julio Cucul Bol, a 29-year-old citizen of Guatemala, is accused of being the driver of the Mitsubishi.

Cucul Bol was arrested and charged with leaving the scene of a crash resulting in death, aggravated driving under the influence resulting in death and reckless homicide

The Department of Justice charged Cucul Bol with possessing a false permanent resident card, possessing a false Social Security card, false use of a passport and making a false statement on a bank application.

On Monday, DHS announced "Operation Midway Blitz" in Chicago.

"This ICE operation will target the criminal illegal aliens who flocked to Chicago and Illinois because they knew Governor Pritzker and his sanctuary policies would protect them and allow them to roam free on American streets," a DHS spokesperson said on Monday.

Chicago Mayor Brandon Johnson on Monday penned a guest essay in the New York Times on President Donald Trump's threat to send the National Guard to the city.

In it, he said doubling down on strategies that made this summer the safest since the 1960s would be more beneficial.

"For much of the last six decades, Chicago's leaders have pursued various 'tough on crime' strategies targeting guns, drugs and gangs. Despite the significant resources devoted to these strategies, sustained reductions in crime proved elusive," he said. "My administration has managed to make progress in crime reduction with three interconnected strategies: effective and law-abiding policing, violence prevention and addressing the root causes of crime."