Firefighters battle flames and extreme cold in Heart of Chicago, video shows

CHICAGO (WLS) -- Chicago firefighters battled flames and the extreme cold on Tuesday night.

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The fire broke out in an apartment building at Cullerton and Paulina around 8 p.m. in the Heart of Chicago neighborhood.

Officials said six people were able to safely escape the building, but they will have to find other housing now.

Video shows a warming bus at the scene for those who were displaced.

No word on what caused the fire.

No injuries have been reported.