More than 180 firefighters have responded to a huge factory fire in Derrimut, in Melbourne's west, where hazardous material and unknown toxins continue to burn.

Fire Rescue Victoria (FRV) said there had been a large chemical explosion at the factory on Swann Drive, resulting in one of the state's biggest fires in recent years.

Clearly a plot by big chemical to put the mind control drugs into the air!11!!

It's good nobody got hurt, given the last time I saw a chemical explosion reach the news (obviously the scale is different, but still)