DALLAS — Four defendants pleaded not guilty Wednesday to charges in connection with a July "ambush" on a North Texas ICE detention facility, according to court records.

Officers responded on the evening of July 4 to the Prairieland Detention Center in Alvarado, about 30 miles south of Fort Worth, to reports of people in black clothing shooting fireworks toward the center, WFAA previously reported. An Alvarado police officer who was the first to respond to the scene was shot in the neck and taken to a hospital for treatment, officials said. He was later released, and no one inside the facility was injured.

"It was a planned ambush with an attempt to kill ICE correction officers ... seemed designed to draw ICE personnel outside the facility, and it worked," said Acting United States Atto

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