About 8am today (Thursday 19 July 2018), emergency services were called to Bridgman Road, Singleton Heights, following reports of a house on fire.

Five occupants of the home, a woman, and four children aged between three and 16 escaped the blaze with minor injuries.

A five-year-old boy sustained serious burns to his body and was airlifted to Westmead Hospital in a critical condition.

Fire fighters attended and extinguished the blaze, however; the house was totally destroyed.

Officers from Hunter Valley Police District established a crime scene, which will be forensically examined once deemed safe.

The cause of the fire is yet to be determined.

Anyone with information is urged to come forward.

Multiple fire crews (NSW Fire& Rescue and RFS) are still on the scene after arriving to find the dwelling fully engulfed by flames at around 8.15am.