Salt Lake City and its county file a lawsuit seeking to stop the U.S. Department of Homeland Security from opening a large “warehouse” facility in the city for immigrant detention. The complaint challenges DHS’s plan to use the proposed site to detain as many as 10,000 immigrants, according to reporting. The lawsuit positions the effort as part of DHS’s broader approach to establishing large-scale detention capacity, using warehouse-style facilities rather than traditional detention arrangements. While the outlets describe the case as the latest legal action aimed at DHS’s detention plan, they do not indicate in the provided excerpts what specific legal grounds the plaintiffs cite or what interim relief is requested. The reporting centers on the goal of blocking the planned opening and limiting the use of the facility for detention at that scale. The case adds to ongoing public and legal disputes around U.S. immigration enforcement and the use of large detention facilities. The lawsuit’s next steps, including whether a judge grants an injunction, are not detailed in the available text.