(CNN) — After clashes with law enforcement at an ICE facility in suburban Chicago over the weekend, four protesters are facing federal charges, including one who threatened to kill an agent, according to the criminal complaints.

Dozens of federal law enforcement officers in tactical gear deployed non-lethal munitions while pushing back a crowd of protesters outside the facility Saturday evening. For weeks, protesters have gathered at that location, about 10 miles west of Chicago, to protest ramped-up ICE enforcement and aggressive tactics. In recent days, agents stationed at that facility on the ground and from the roof have used pepper balls, rubber bullets, and tear gas to clear out protesters.

Three people are facing charges for assaulting federal law enforcement, according to the co

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