CEDARBURG, WI (WTAQ) - Cedarburg fire officials say a spark from a machine at Ataco Steel Poducts cause a small, but very smoky fire at about 3:30 p.m. Saturday.
The smoke filled the building where sheet metal work is done along Highway 60. When the spark got in the ventilator system it apparently set filters on fire.
There were no flames involved and people were moved outside.
Firefighters say it took a couple of hours to clear the smoke from the building using some fans.