Disney Attack: Child Presumed Dead ... Alligators Persistent Problem in Lagoon

Cops have laid to rest any hope of rescuing the 2-year-old boy dragged into a Disney lagoon by an alligator, and they just revealed gators in the area have been a big problem for a long time.

Orange County Sheriff Jerry Demings just said the boy is presumed dead. But a Fish and Wildlife official raised troubling questions about a hidden danger at Disney resorts ... gators populating its lagoons.

As we reported, the resort in question did not warn guests about alligators, but now officials say they routinely kill the gators they find in the waters, and that it's hard keeping them away.

Divers are now using sonar to find the child's body.