A five-year-old boy is fighting for life following a house fire at Singleton Heights this morning.
The home in Bridgeman Road went up in flames at about 8am, with a woman and five kids aged between 3 and 16 forced to flee.
One of the children suffered serious burns to his body and has been flown to Sydney's Westmead Hospital in a critical condition.
The house was totally destroyed in the blaze.
It's unclear what sparked the fire.
Police have set up a crime scene, which will be forensically examined once it's safe.