Brimbank residents are being warned, as firefighters are battling a blaze at a Laverton North cardboard recycling facility.
Crews arrived at the Plummer Road factory at 12.09pm.
Fire fighters in breathing apparatus are working to tackle the blaze at the tin structure and conducting an aerial attack on the fire.
A community warning was issued for smoke in the areas of Derrimut, Laverton North, Sunshine West.
Smoke will be visible from nearby roads and the community has been urged to stay away from the area.
The fire is not yet under control.
