The fire was reported around 4:45am at the Locust Medical Center. The upper floors were reportedly empty and slated for renovation, but neighbors had to be evacuated.
"It looked like a whole block on fire," said Aaron Ruffin.
Water from the fire hoses combined with cold temperatures caused some major ice problems for crews.
Video from the chopper of our sister station, WPVI-TV in Philadelphia, showed ice covering not only the site of the fire, but also power lines, utility poles and neighboring buildings.
It was three degrees at the time of the fire with a wind chill of 16 below zero.
The weight of all that ice added another factor that firefighters had to account for.
"So we have to be careful about the collapse of the building," said Chief Kamau Bright.
So far, there is no word on what sparked the blaze.
No injuries were reported.