Fire on Chicago's South Side leaves 10-year-old boy dead, man critically injured

CHICAGO - A 10-year-old boy was killed and a man was critically injured in a fire Monday morning in the Washington Heights neighborhood.

What we know:

The fire started around 3:30 a.m. at a residence near 104th and Green streets, according to Chicago police.

Firefighters found a 10-year-old boy in the building. She was taken to Roseland Community Hospital where she later died.

An 18-year-old man was also found and taken to Little Company of Mary Hospital where he was listed in critical condition.

Police said a man and a woman were able to exit the home uninjured.

What we don't know:

The cause of the fire is under investigation. As of Monday morning, the boy had not been identified by the Cook County medical examiner's office.