On Wednesday night, workers replaced the signs in front of the training facility with ones that read "Alligator Alcatraz."

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.

Immigrants who are arrested by Florida law enforcement officers under the federal government’s 287(g) program will be taken to the facility, according to a Trump administration official.