Despite earlier reports that ICE agents tried to enter a Chicago elementary school Friday, the agency says it wasn’t them. So what exactly happened? The U.S. Secret Service said the encounter was actually agents conducting a “protective intelligence investigation.

U.S. Immigration and Customs Enforcement agents attempted entry into a Chicago elementary school Friday morning, but were not allowed inside or permitted to speak to anyone inside, Chicago Public Schools officials said.

Chicago Public Schools prevented officers from U.S. Immigrations and Customs Enforcement from going into an elementary school on Chicago’s Southwest Side Friday and talking to students, according to school officials.