Just listened to the radio news where Victorian Police Commissioner, Christine Nixon, said the Marysville fire was suspicious & probably deliberately lit.

Vic arson taskforce appeals for public help - story posted 2hrs 37 mins ago One hundred and fifty detectives are working across six fire zones set up as part of Taskforce Phoenix.
Four of the six blazes are not suspicious with the cause of the Marysville fire yet to be determined.

Up to 1 in 5 dead in Marysville: Brumby - "In the Marysville area, there could be somewhere between 50 and 100 lives lost," he said. (out of 500+ population)