Police believe human remains found in the rubble of a burnt-out shed are those of 54-year-old Biggenden man Todd Mooney and his 10 year-old daughter Kirra.
Authorities were alerted to a fire on the rural property at Biggenden, 83 kilometres west of Maryborough, at 12:20pm on Tuesday.
The Queensland Fire and Emergency Service said the fire took about seven hours to extinguish and was attended by six crews.