Firefighters arrived on the scene at about 9:30 a.m. and found smoke and water on the fourth floor. They found the source of the smoke in a fourth-floor apartment where the sprinkler system extinguished a fire but flooded several neighboring units in the building.
Fire crews shut off the sprinkler, ventilated the fourth floor and spent about an hour on scene clearing water from the fourth floor.
The smoke and fire damage was limited to the fourth-floor apartment but the first through fourth floors sustained water damage.
No one was injured in the incident and no damage estimate was released.