The first group of immigrants were scheduled to arrive Wednesday night at a new detention center deep in the Florida Everglades that officials have dubbed “Alligator Alcatraz,” the state's attorney general said.

The Trump administration says the detention center for undocumented migrants will house the “worst of the worst.” Conservationists are concerned about its impact on the river of grass.

President Donald Trump on July 1 toured the 5,000-bed immigration detention center being built on 39 square miles in Miami-Dade.