A towering column of dark smoke was visible across Melbourne’s skyline this week after a large industrial fire broke out at a factory complex in Derrimut, in the city’s western suburbs. The incident prompted one of the most extensive firefighting operations in Victoria in recent years, with authorities warning the clean-up and recovery could take weeks.
A Fire of Unprecedented Scale
The blaze began late Wednesday morning at a factory on Swann Drive, an industrial zone surrounded by warehouses, transport depots, and distribution centers. Fire Rescue Victoria (FRV) confirmed that multiple chemical storage drums inside the facility were caught in the flames, triggering bursts of heat and debris.
Deputy Commissioner Michelle Cowling said firefighters received reports of a rapidly spreading fire just after 11 a.m. Within minutes, thick smoke was visible for kilometres, with residents from both Melbourne’s west and inner suburbs reporting they could see the plume stretching across the horizon.
“This was an aggressive fire requiring a large-scale response,” Cowling said. “The warehouse contained a range of chemicals, and as a result, our crews had to take every precaution to protect both themselves and the wider community.”
More Than 180 Firefighters Deployed
In total, more than 180 firefighters were called to the scene, supported by dozens of fire trucks and aerial units. Crews from both FRV and the Country Fire Authority (CFA) worked side by side under intense conditions.
By mid-afternoon, authorities confirmed the fire was officially “under control,” though smaller hotspots would continue to burn for days. Firefighters are expected to maintain a presence at the site until the risk of reignition is fully eliminated.
“This is not something that will be resolved overnight,” Cowling said. “Our teams will remain here for as long as necessary to ensure the site is safe.”
Local Evacuations and Road Closures
As a precaution, factories and offices in the immediate area were evacuated. Several major roads were also closed, including sections of the Western Freeway, which caused delays for drivers during the busy afternoon commute. Power outages in nearby suburbs disrupted traffic signals, adding to congestion.
By Wednesday evening, some arterial roads were reopened, but police urged motorists to avoid the area if possible to give emergency services clear access.
Dramatic Scenes Witnessed
Witnesses described dramatic scenes as barrels and containers inside the warehouse overheated and launched into the air. Ravenhall worker Trent Chamberlain, whose office is three kilometres away, said the fire’s scale was alarming.
“Every few minutes, there was another burst that went high into the air,” he told reporters. “The smoke was thick and heavy — it was impossible to miss.”
Residents as far away as St Kilda, more than 20 kilometres from the scene, reported seeing the dark plume against the afternoon sky.
No Reported Injuries
Despite the scale of the fire and the hazardous materials on site, authorities confirmed there were no injuries among factory workers, nearby residents, or emergency personnel. Ambulance Victoria said paramedics were stationed at the site from the early stages of the emergency but did not need to transport anyone for treatment.
“This is a positive outcome considering the risks our teams faced,” Cowling said. “All staff are accounted for, and no firefighters have been seriously harmed.”
Smoke Warnings Issued
As dark smoke spread across Melbourne’s west, the Environment Protection Authority (EPA) issued warnings for surrounding suburbs. Residents were urged to remain indoors where possible, close doors and windows, and switch off heating or cooling systems that draw in outside air.
EPA monitoring units were deployed to measure air quality. While the smoke was expected to dissipate with changing wind conditions, residents with respiratory sensitivities were advised to take precautions.
Community Impact and Safety Precautions
The fire prompted concerns from community groups, particularly given the site’s industrial nature. The factory is understood to belong to ACB Group, a company that has previously experienced fire-related incidents. The company did not provide comment during the immediate aftermath.
Authorities stressed the importance of keeping the community safe while crews continued to manage the site. “We ask that people stay away from the area,” Cowling said. “These are hazardous conditions, and the fewer people nearby, the safer it is for everyone involved.”
Environmental Monitoring Underway
Beyond the immediate firefighting efforts, attention quickly turned to the potential environmental impacts of the incident. The factory stored large quantities of chemical substances, including kerosene, fuel products, and ethanol. When such materials are exposed to heat and water during firefighting, there is a risk of runoff entering nearby creeks and storm drains.
EPA officials confirmed they were working closely with Melbourne Water to contain contaminated water and prevent it from spreading into natural waterways. Trucks and pumps were deployed to capture excess water, while sandbags were installed to slow runoff.
“Right now, we are focused on limiting the impact on local creeks,” an EPA spokesperson said. “Monitoring will continue for as long as needed.”
Broader Context of Industrial Fires
This is not the first time Melbourne’s western suburbs have faced major industrial blazes. In recent years, sites in Footscray, Tottenham, and West Footscray have experienced large-scale fires that raised long-term questions about storage practices and regulatory oversight.
Experts say these incidents highlight the challenges of balancing industrial growth with environmental safety. “The community has every right to be concerned,” said one environmental specialist. “We need stronger prevention measures to ensure these events are less likely to happen in the first place.”
Next Steps in Investigation
Authorities have confirmed that investigators will enter the site once it is deemed safe. At this stage, the cause of the fire remains unknown, but early indications suggest it was not deliberately lit.
“This will be a thorough investigation,” Cowling said. “It’s important that we determine exactly what occurred so that steps can be taken to reduce future risks.”
WorkSafe Victoria is also expected to review the incident as part of its ongoing oversight of industrial sites.
Long Road to Recovery
Although the fire is largely contained, its aftermath is expected to stretch into the weeks and months ahead. Environmental clean-up, workplace inspections, and community reassurance will all form part of the recovery process.
For now, firefighters remain stationed at the factory, ensuring the site is stable and preventing any chance of reignition. Residents are being kept updated through official emergency channels, with regular air quality and traffic bulletins issued.
While Melbourne has seen industrial fires before, the Derrimut blaze serves as a stark reminder of the risks associated with large chemical storage facilities. The incident has reignited calls for tighter safety measures and stricter enforcement to protect both the environment and local communities.