With Florida's so-called Alligator Alcatraz now open, another migrant detention facility roughly 400 miles north of the original is already planned in the Everglades.

The first group of immigrants has arrived at the center in the Florida Everglades. It was built in eight days and could eventually hold 3,000 people. (AP Video: Rebecca Blackwell)

The first group of immigrants has arrived at a new detention center deep in the Florida Everglades that officials have dubbed “Alligator Alcatraz,” a spokesperson for Republican state Attorney General James Uthmeier told The Associated Press.