A fire broke out in a four-story, multi-unit apartment building in the 8000-block of Yates Boulevard about 10:50 p.m., Chicago fire officials said.
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The fire traveled up through all the floors before being put out.
One male victim was taken to a nearby hospital in good condition. His dog was also rescued.
A witness described what she saw.
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"I ran to look out the window; I saw nothing but smoke," Carolyn Jones said. "At that point, I heard a pop, big old pop. When my window popped, I knew I had to get out of there."
The fire's cause was not immediately clear Tuesday morning.