Excerpts from cbsnews.com:

#chicagoareafire.com; #ChicagoFD; #fire; #Flames;

photo from cbsnews.com

Three people were injured after escaping an apartment fire in Old Town overnight. 

Just before midnight, flames were visible from the fourth floor of the building near Wells Street and North Avenue in Chicago. 

A man and woman were taken to Northwestern Hospital in fair condition for smoke inhalation. Another man was taken to the same hospital in good condition with a possible ankle injury. 

A fourth floor resident who escaped the fire said he heard something so loud, he thought it was a gunshot. 

An investigation is underway.