Police said they responded to call at about 5 a.m. in the 4600-block of S. Drexel Boulevard in the Bronzeville neighborhood.
A 43-year-old man was inside a home when somebody approached and threw a "flammable object" through the front window.
The victim was able to put the fire out; no injuries were reported.
Chicago police said the suspect ran off. Nobody is in custody.
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