Fire Rescue Victoria crews responded to multiple calls for a house fire in Williamstown early Sunday morning.
Crews found a 2-storey timber building 8 metre by 10m metre in the rear yard fully involved in fire which has spread to a shed in a neighbouring property about 4am.
One male suffered burns to his back and arm and was treated by a doctor and nurse who lived nearby on scene until Ambulance Victoria arrived.
A community warning was issued due to the large amount of smoke in the area.
The cause of the fire is not known.
