Massive relief operations are mounted as death toll continues to rise in Australian bushfires. The toll is put at 173 now.
Rescuers are resuming the search for victims of Australia's bushfires amid fears the death toll will rise further.
At least 173 people have died and hundreds more have been injured by blazes sweeping across Victoria state.
Residents in many areas are still on alert as more than a dozen fires continue to burn uncontrolled.
The word "holocaust" is being used to describe the event and is considered by many to be the worst natural disaster ever in Australia.
A 100-strong police task force has been launched to investigate the fires. Some are being treated as arson that PM Kevin Rudd described as "mass murder".
MORE than one arsonist would have been responsible for several of the blazes which erupted in Victoria over the weekend, a fire criminologist believes.
About half of all bush fires in Australia are deliberately lit by fire bugs, Australian National University research fellow Dr Damon Muller said.
Given up to 400 fires hit Victoria over the weekend at varying locations across the state, Dr Muller believes more than one arsonist was at work.
"Without putting a figure on it, it would be surprising if some of them were not deliberately lit, just by virtue of the significant number,'' Dr Muller said.
"And by virtue of the diversity of locations there is probably a number of perpetrators.''