Alligator Alcatraz is the migrant detention center near the Florida Everglades. New aerial video shows the "small city in the swamp."

Two influential environmental groups suing state officials over construction of Alligator Alcatraz are sounding the alarm over what they say is a “catastrophe” unfolding at the remote site of the state-manage controversial immigration detention facility.

Florida officials argue a lawsuit over the Everglades detention center was filed in the wrong court, as environmental groups seek to halt expansion.