MIAMI (AP) — A federal judge on Thursday ordered a two-week halt to construction at an immigrant detention center in the Florida Everglades dubbed “Alligator Alcatraz” as she considers whether it violates environmental laws.

The facility was quickly built two months ago at a lightly used, single-runway training airport and can hold up to 3,000 detainees in temporary tent structures. The site was continuing to be built out, but the order by U.S. District Judge Kathleen Williams temporarily bars any new filling, paving or infrastructure.

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