The father of Lane Graves, who died when an alligator attacked him at Walt Disney World in June, tried to free his son from the reptile's jaw, a report has revealed.

Matt Graves reached into the 7ft alligator's mouth to try and free his two-year-old son after the animal bit into the toddler's head after he bent down at the edge of a lagoon at Disney's Grand Floridian Resort.

The distraught father also told police officers that he was attacked by a second alligator as he struggled to save his son.

A final report on Lane Graves' death released by Florida's wildlife agency said the boy died from a crushing bite and drowning.

The Florida Fish and Wildlife Conservation Commission report said the child did nothing to provoke the alligator and the death was classified as a predatory attack.

It added that the alligator may have had a diminished fear of people by being in an area with lots of humans.

The Walt Disney Company has struggled to keep alligators away from guests and has had more then 240 "nuisance" alligators captured and killed over the last 10 years, according to records.