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.

Immigration and Customs Enforcement is playing a key role in the Trump administration’s plans to crack down on illegal immigration. Here’s a look at some key questions about the agency and its priorities.

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.

Sources said the Secret Service was investigating an online threat that a Hamline student made against President Trump following the U.S. ban on TikTok.

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

U.S. Immigration and Customs Enforcement, or ICE, in the country's interior, and U.S. Customs and Border Protection at the nation's borders. On Thursday, Department of Homeland Security Acting ...

The Trump administration intensified efforts to crack down on illegal immigration, making U.S. Immigration and Customs Enforcement (ICE) a central focus.

There has been no communication between ICE and the Genesee County Sheriff's Office regarding immigration enforcement, Sheriff Chris Swanson said.

School districts “have the authority to create policies restricting ICE agents’ entry into schools,” one legal expert said.

Following the Department of Homeland Security’s (DHS) recent policy update allowing arrests and searches in “sensitive locations” such as schools and churches, the Abilene Independent School District (AISD) has reaffirmed that policies and procedures are in place regarding visitors and law enforcement presence on campuses.

Several school districts and the Massachusetts attorney general issued guidance on how schools should react if approached by ICE agents.