Chicago school leaders say immigration agents showed up to an elementary school today in what may be the first of such actions since the Trump administration this week reversed federal policy to now permit immigration enforcement inside schools,

The incident comes amid a threatened Trump administration crackdown and sent ripples of fear through the K-8 school.

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.