Police are currently on scene and investigating a fatal house fire in Maryborough this morning.
Emergency services were called to reports of a fire at a residential property on Barr Street about 11.45am
The fire was contained to the single-storey house.
A male occupant, who is yet to be formally identified, died at the scene.
Two women, in their 30s and 60s, along with a 3-year-old child were treated at the scene for non-life-threatening injuries.
A 2-year-old child was airlifted to hospital in a serious condition.
A crime scene has been established and an arson chemist will attend the scene later today.
The investigation remains ongoing.
Anyone with information is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential report online at www.crimestoppersvic.com.au