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.

Chicago officials admitted they confused Secret Service agents who showed up at an elementary school to investigate a threat for ICE agents.

Chicago Public Schools officials incorrectly said U.S. Immigration and Customs Enforcement Agents attempted to enter a South Side elementary school.

A recent move by Trump allows immigration authorities to conduct raids at schools. Multiple school districts have pledged to complicate the efforts.

Chicago Public Schools officials reportedly mistook Secret Service agents for ICE officers during a chaotic morning incident amid migrant crackdowns.

Fearing federal agents asking to search a Chicago elementary school Friday morning were from Immigration and Customs Enforcement, school officials denied them entry. But it turned out they were US Secret Service agents pursuing an investigation.

Officials with Chicago Public Schools claimed U.S. Immigration and Customs Enforcement agents were seen at Hamline Elementary School. The Secret Service said special agents were investigating a threat.

CHICAGO -- The U.S. Secret Service said its agents visited a Chicago elementary school Friday while investigating a threat, hours after school officials mistakenly claimed that U.S. Immigration and Customs Enforcement agents had come to the building.

The Secret Service is continuing to release information after Chicago school officials responded to what they thought was an ICE action Friday.

CPS officials initially said agents who identified themselves as ICE arrived at Hamline Elementary in Back of the Yards Friday, but it was actually Secret Service agents looking for an 11-year-old who posted an anti-Trump video,

The agents turned out to be unrelated to immigration, officials said hours later. They were from the Secret Service, investigating a threat.