CHICAGO (AP) — Protesters tried to block vehicles Friday outside a federal immigration enforcement building in suburban Chicago, leading to a confrontation with authorities who used a chemical agent to disperse the crowd.

Dozens of people carrying American flags and signs with the words “Hands off Chicago” were at a U.S. Immigration and Customs Enforcement building in Broadview, about 12 miles (19 kilometers) west of Chicago.

Some protesters were taken into custody as white clouds from the chemical agent broke up the group, allowing vehicles to arrive and depart, according to video posted online by local TV crews.

Andre Vasquez, a member of the Chicago City Council at the protest, described it as “tear gas, a little pepper spray, a little mix of both.”

ICE launched a new operation th

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