The northern snakehead has been found in three counties of Florida, and may already be established there. Apparently unestablished specimens have been found in Flushing Meadows–Corona Park, New York City, two ponds in Philadelphia, a pond in Massachusetts, and reservoirs in California and North Carolina.In 2008, the northern snakehead was found in drainage ditches in Arkansas as a result of a commercial fish-farming accident. Recent flooding may have allowed the species to spread into the nearby White River, which would allow an eventual population of the fish in the Arkansas and Mississippi Rivers.