Large fire consumes West Philadelphia apartment building

PHILADELPHIA - Firefighters are on the scene of a raging apartment fire that broke out Tuesday morning in West Philadelphia. 

What we know:

Firefighters were called to the 4400 block of Chestnut Street around 6 a.m. for reports of a fire at a three-story building.

Crews arrived to find heavy flames and smoke billowing from the upper floors of an apartment building. 

SkyFOX footage showed flames raging on an upper level balcony, near a grill.

What we don't know:

It's unknown at this time how the fire started.

Firefighters have not reported any victims so far.

PhiladelphiaNews