Police say squatters have moved into homes in Bundaberg, in south-east Queensland, abandoned after the city's major flood.
Parts of North Bundaberg inundated by floodwaters in January are still cordoned off.
Officers have reported that a number of people were living in two flood-affected properties in recent weeks.
No-one has been charged but police say they are investigating whether any property has been stolen.
© ABC 2013
18:30 EDT Friday 13th has lived up to its reputation for bad luck in regard to severe weather as thunderstorms, hail, heat and damaging wind gusts have all featured, throughout the country.