Flash flooding on Australia's southeast coast has killed three people and cut off towns, isolating tens of thousands of residents, as officials on Thursday warned more downpours were expected over the next 24 hours.

Record rainfall on Australia's east coast has led to catastrophic flooding, with three dead and one missing. Over 500 people have been rescued, and more rain is expected. Regions like New South Wales have been severely impacted,

Australian officials say record floodwaters on the country's east coast have left one person dead and three others missing, as more heavy rain is forecast in the area.