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.

Florida's Miccosukee tribe challenges new Everglades detention facility over environmental and safety concerns, as Trump tours the 5,000-person "Alligator Alcatraz."

The exact timing and origin of the incoming detainees remain unclear, but officials confirmed they are being transported to the site by buses.