An extra-alarm fire destroyed an apartment building and two popular businesses in Albany Park, the Ultimate Ninja and the Twisted Hippo Brewery.
One injury was reported, a 60-year-old who suffered smoke inhalation and was taken to a hospital in fair condition.
The fire started around 3:45 a.m. at an apartment building at Montrose and Richmond and spread to buildings that house the gym and the brewery.
Chicago fire officials said the second and third floors of the apartment building were engulfed in flames when firefighters arrived, but all of the residents were able to escape.
Marilee Rutherford, owner of Twisted Hippo, said the back of the building had already collapsed when she arrived at the scene. By the time the fire was extinguished, the building was reduced to rubble.
The cause of the fire was unknown.