A seven-year-old boy has been filmed breaking into a zoo, feeding a string of small animals to the resident crocodile and bashing several lizards to death with a rock.
The 30-minute rampage, caught on security camera, happened early on Wednesday after the boy jumped a security fence at the Alice Springs Reptile Center in central Australia.
The child then went on a killing spree, bashing three lizards to death with a rock, including the zoo's 5.5-foot goanna, which he then fed to "Terry," an 11-foot, 440-pound saltwater crocodile.
The boy also fed several live animals to Terry by throwing them over the two fences surrounding the crocodile's enclosure.
Zoo director Rex Neindorf said: "We're horrified that anyone can do this and saddened by the age of the child."
"By all accounts, he's quite a nasty 7-year-old and he comes from a family that's got a history of violence, and he's continued on with it and nothing can be done because he's seven."
Mr Neindorf said the zoo plans to sue the boy's parents.
"We'll be looking at suing the parents, who were supposedly in control of him at the time," he said.
"I just want people to learn that they can't let their children go and run amok. If we can't put the blame onto the child, then someone has to accept the responsibility."
It is believed the boy's small size is the reason he did not trigger the zoo's security system, which relies on sensors to detect intruders.
By the end of the incident, 13 animals worth around $5,500 had been killed, including a turtle, bearded dragons and thorny devil lizards
Alice Springs police said they identified the boy, who lives locally, but are unable to do anything because of his age. Children under age 10 can't be charged with criminal offences in the Northern Territory.