About 50,000 people have been urged to evacuate their homes as floods hit Australia's largest city for the third time this year. Parts of Sydney have received about eight months of rain in four days.

Fire ants are forming rafts to travel on flood waters across storm-ravaged Australia, aiding the spread ... to biosecurity authorities. One of the biggest fears shared by experts is that they ...

These low-lying areas in South Australia’s Riverland rely on regular flooding. But irrigation in states-upstream has meant these floodplains no longer get the water they need, and Mr Sharley ...