Windsor fire crews responded to an apartment fire in the 3900 block of Wyandotte Street East Sunday morning.
Smoke was seen billowing from a third-floor balcony when firefighters arrived.
Crews were able to contain the fire to the unit and set up ventilation in a stairwell.
Paramedics and police attended the scene to assist fire crews.
According to Windsor Fire, less than $5,000 in damages was sustained.
Three occupants with minor injuries were treated on scene.
Improper discarding of smoking materials is the suspected cause of the fire.