They suspect the pair started the fire to destroy evidence of their drugs laboratories, which were hidden in a remote region of Blue Mountains National Park just east of Sydney. The bushfire destroyed 55 hectares of the park.
The charred remains of the laboratories were cordoned off today as detectives searched for evidence.
Police believe the men, who they accuse of making millions of dollars from the production of a drug known as ice, became aware that they were under police surveillance and decided to torch the labs.
A huge wildfire has swept through the Warrumbungle National Park in Australia's New South Wales.
An Australian family made a dramatic escape from the wildfires by jumping into the sea and clinging onto a jetty for three hours.