The Trump administration brought new federal charges against migrant poultry workers in Mississippi this week, intensifying the heavy-handed approach it has taken toward the people Immigration and Customs Enforcement arrested in the agency’s largest single-state worksite raid in August.

ICE arrested about 680 migrant workers at seven poultry processing plants outside Jackson in an Aug. 7 operation coordinated by the agency’s investigative branch. Within two days, ICE had released 300 of the poultry workers. In cases where ICE had arrested both parents of a household, the agency released one on humanitarian grounds, according to the U.S. Attorney’s Office for the Southern District of Mississippi. ICE also typically released single parents while their cases proceeded.

But now the Trump administration is prosecuting some of the people that ICE chose to release. Dozens more migrant workers are now facing federal indictments, with many of the charges based on the same statute criminalizing immigration violations that several 2020 Democratic presidential nominees have pledged to repeal.

U.S. Attorney Michael Hurst, a Donald Trump appointee, had already brought charges against about 75 migrants for crimes including illegal reentry, misuse of a social security number or falsely representing themselves as U.S. citizens.

The latest indictments have yet to appear on a database of federal court records or on the daily courtroom schedule. But a court-appointed lawyer and two people who have viewed recently issued summonses confirmed to HuffPost that they are beginning this week.

“Apparently there are some new ones,” Brad Mills, who has defended migrants arrested in the Mississippi raid as a court-appointed lawyer, wrote in an email to HuffPost. “They want me to show up in court at 10 a.m. this Thursday, and they will assign me a new case. Maybe more than one.”