People could smell the smoke miles from the scene.
Traffic was congested around Union Street. Some roads were closed in the area.
Freeman says there were no evacuations, although crews were worried about embers drifting to nearby properties.
The vacant RMG building once housed the oldest and longest operating factory in Mishawaka.
According to our partners at the South Bend Tribune, the factory shut down in 2006 and around 180 people lost their jobs.
Before it was RMG, it was the Dodge Manufacturing Company.
That factory opened in 1878 as the Magic Jack Company.
It was one of 40 buildings owned by William and Wallace Dodge along the St. Joseph River.
It was sold to Reliance Electric Company in 1967.
Since then, it was purchased and sold by two other companies and now is used for storage.