Those people were arrested without warrants across the Chicago area and five neighboring states.
The lower court judge ruled those arrests violated a 2022 consent decree.
The consent decree required U.S. Immigration and Customs Enforcement and other federal agents to meet certain criteria when making warrantless arrests, including pre-determining whether there is probable cause to believe the person is in the country illegally, and whether they are also a flight risk.
But the Trump Administration argued that the order put the lives of Americans at risk.
SEE ALSO: Father describes experience in Broadview ICE custody after court orders his release
The ruling had required the detainees be put on electronic monitoring after paying a bond by Friday.
This order now puts that on hold until a hearing on the matter next month.
Earlier this week, Judge Jeffrey Cummings denied a request by the government to delay the release.
Cummings found thousands of arrests may have violated the consent decree, agreeing with attorneys from the National Immigrant Justice Center and American Civil Liberties Union.
As a result of that finding, last week, Cummings ordered hundreds of people -- who do not present a "high risk to public safety" -- to be released from custody into electronic monitoring while the court is in the process of determining whether their arrests violated the agreement.
Four hundred forty two people were eligible for release Friday.
Attorneys representing the government have argued that Congress stripped federal courts of their authority to grant parole to large groups of immigrants in ICE custody, which they believe Judge Cummings is doing in this case.
The ACLU and National Immigrant Justice Center told the ABC7 Chicago I-Team while they're disappointed with this decision, the case is not over.
Both sides will have 20 minutes to argue their positions before the court of appeals on Dec. 2.