"The parents awoke with the toddler crying and heard the crying getting further away from the campervan", Mr Du Toit said.
But the boy's parents made an unimaginable discovery upon waking up to comfort their son: He was no longer in their camper van.
The boy's father ran outside and fought off several dingoes to rescue his son from the dog's jaws. Mr Du Toit said the parents woke as their son's cries were fading as he was dragged away.
Rescue pilot Frank Bertoli praised the parents' quick response, which he said likely saved the boy from even more severe injuries.
The 14-month-old was rushed to hospital on Thursday night with a fractured skull and cuts to his head and neck after the brutal attack.
"He has suffered multiple puncture wounds to his neck and skull", his family said in a statement.
After fighting them off, the father retrieved his son and called emergency services.
Bertoli said he thinks the dingo entered the camper trailer through its canvas.
The Queensland Ambulance Service (QAS) paramedic, based on the island, was the first to treat the child's injuries, until the arrival of the Bundaberg-based RACQ LifeFlight Rescue helicopter.
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The incident was reminiscent of an infamous dingo attack almost 40 years ago in the Northern Territory.
He was flown to a hospital and is in stable condition.
In January, a six-year-old boy was mauled by the native animal after as he ran up a dune on the island.
EARLIER, 3AM: A toddler has been pulled from a caravan on Fraser Island.
Queensland Parks and Wildlife officials said they are working to track down the animals involved in the attack.
Experts also believe dingoes may attack humans on rare occasions due to scarcity of food, especially during times of drought.
The most famous case involving a dingo attack was back in 1980 when nine-week-old Azaria Chamberlain, disappeared from a campsite near Ayers rock.
Azaria's mother Lindy was jailed for three years over her daughter's death before later being cleared, but it wasn't until 2012 that a court ruled that a dingo killed Azaria.