Some "Alligator Alcatraz" detainees are among the more than half a million recipients of the Obama-era Deferred Action for Childhood Arrivals policy, or DACA.

Florida's corrections agency and ICE updated an agreement on handling federal immigration detainees, but they did it more than a month after "Alligator Alcatraz" opened.

Department of Homeland Security Secretary Kristi Noem says possible new locations include Arizona, Nebraska and Louisiana.