U.S. Customs and Immigration Enforcement (ICE) arrested 84 people in North Texas on Sunday, the agency said. Arrests were made in a number of areas, including Dallas, Fort Worth, Irving and parts of Collin County.

As many as a thousand North Texans gathered near Dallas’ Margaret Hunt Hill Bridge Sunday afternoon in protest of President Donald Trump’s national mass deportation plan. The protest lasted well into the evening hours despite frigid temperatures, with many protesters standing wrapped in blankets and Mexican flags.

Dozens of people were arrested in North Texas alone as part of Donald Trump’s crackdown on people who may be in the country without legal status.

Arrests were made in a number of areas, including Dallas, Fort Worth, Irving and parts of Collin County. The agency said it is part of an ongoing effort.