CHICAGO (WLS) -- Chicago police are investigating after a construction crew found bones while working on the city's South Side.
Police said the crew unearthed the remains around 9:30 a.m. Tuesday while working in the 1900-block of W. 51st Street in the Back of the Yards neighborhood.
It's unclear if the bones are human or animal, police said.
Bones found in Back of the Yards
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