A nationwide immigration crackdown on Sunday resulted in the arrest of 956 people, the most since Donald Trump returned to power, according to Immigration and Customs Enforcement (ICE).
Several federal agencies with newly expanded detention powers were involved in the raids in many cities including Chicago, Newark and Miami.
Trump came to power after making mass deportations of undocumented immigrants a central campaign promise.
His predecessor Joe Biden carried out an average of 311 immigration deportations daily, according to ICE, mostly individuals who had committed crimes.
Since taking office, Trump has carried out 21 executive actions to overhaul the US immigration system.
Tom Homan, Trump’s border czar, was in Chicago to oversee the operation there but his federal crackdown has made Democratic leaders unhappy.
Chicago Mayor Brandon Johnson acknowledged the ICE enforcement activity, saying Chicago police were not involved and reminding residents to know their rights.
In Miami on Sunday, federal law enforcement agencies conducted several “immigration enforcement actions,” the city’s Homeland Security Investigation said on social media.
This included ICE’s local office in Miami detaining undocumented migrants on various offences.