This was the dramatic moment a fireball erupted from a burning chemical factory in Melbourne.
A chemical explosion at the Derrimut factory reportedly led to the blaze.
Around 180 firefighters battled the inferno and eventually brought it under control, but the site is expected to burn for days.
The factory contained a range of chemicals, including kerosene, fuel, methylated spirits and ethanol.
Tens of thousands of people in the local area have been told to stay indoors as potentially toxic black smoke continues to billow into the sky.
No injuries have been reported in connection with the fire.
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