Twenty residents of the Retreat at Austin Bluffs complex, 4615 Hinsdale Way, were displace by a late Sunday night fire, according to the Colorado Springs Fire Department.
Firefighters worked hot spots that lingered after the fire, the fire department said.
Twelves units were evacuated.
The fire department tweeted overnight that no injuries were reported.
Facebook readers report that the blaze was "through the roof," and possibly triggered by a propane tank.
Three ambulances were called to the scene.
The Red Cross was also on scene to assist displaced residents.