In Australia, the death toll from flood crisis in the south-east state of Queensland has risen to 10, as Brisbane and Ipswich prepare for unprecedented flooding over the next two days. Both cities are on flood alert, with heavy rain, releases from the giant Wivenhoe Dam and high tides set to combine to cause major flood peaks. The number of missing people has been revised upwards to 78, and there are serious concerns for 18 of those people. Authorities say thousands of properties could be flooded as the Bremer and Brisbane rivers hit record levels over the next two days. The Brisbane River is set rise to 4.5 metres tomorrow and could go higher than the 1974 floods that reached 5.45 metres. The Bremer River at Ipswich is now expected to reach 22 metres tomorrow morning – 1.5 metres above the 1974 levels. Large parts of Brisbane are already affected by flooding. A steady stream of debris is floating down the swollen Brisbane River, including boats ripped from their moorings by the force of the current, and a whole ferry pontoon. Queensland Premier Anna Bligh says the scale of the looming disaster is constantly being reassessed. Ms Bligh has urged people not to panic.Thousands of people were forced to evacuate their properties as the Brisbane River hit the first of two predicted flood peaks in the Queensland capital today. Homes and businesses were inundated in more than 30 suburbs as the river, swollen by water being discharged from the overloaded Wivenhoe Dam, hit a peak of around 4.5 meters. The next peak will be around tomorrow morning when the surging waters are expected to reach around 5.5 meters, higher than the level of the catastrophic in 1974 floods.The Brisbane River was a swirling torrent, with boats, pontoons and other debris being swept towards the sea and muddy water inundating low-lying areas. By tomorrow morning almost 20,000 homes in the city will be flooded.There were similar scenes to the west in the city of Ipswich, where homes and businesses were submerged up to their roofs as the Bremer River approached a peak of 20.5 meters.About 95,000 people were without power across the region. Earlier, the death toll from the floods rose to 12 after two more bodies were found in the devastated Lockyer Valley, which was hit by an inland tsunami late on Monday.