It happened at approximately 4:30 p.m. at a building on the 4900 block of Spruce Street.
At the scene, firefighters saw heavy smoke billowing from the roof. Cell phone video shows flames bursting from one apartment unit.
Emergency crews evacuated the building, and over 100 residents were forced to leave. They have now all been displaced.
Authorities say no injuries were reported as a result of the blaze.
Action News spoke with some of the residents of the building, who said the situation was unbelievable.
“I woke up, the fire alarm was going off, I looked out the windows then somebody hit my door and said ‘Get up,'” recalled resident Leon Lindsay. “Thank God I’m alive.”
Lindsay and other residents described what the fire was like from inside the building.
“So much smoke, water was coming out the ceiling, I was choking,” he said.
“You open the door and you see pitch black and smoke and yeah I had to close my door and grab my kids. It was scary, I’m not gonna lie I’ve never seen anything like that,” added Michael Prater.