Fire breaks out at Logan Square apartment building

September 1, 2012 6:14:49 AM PDT
Flames ignited inside an apartment building on Chicago's North Side.

Cell phone video shows building near the intersection of West Logan Boulevard and North California burning.

Firefighters braved dangerous conditions on the roof of the three-story building while flames shot out of windows.

The fire quickly spread to two nearby buildings.

There was no immediate word on any possible injuries or what sparked the blaze.