The accident was reported just before 6 p.m. Friday on CSX tracks near the Clarion Hotel in the unit block of Industrial Highway.
The view from Chopper 6 showed a number of police and emergency vehicles on the scene.
Authorities say the boy's leg was run over. He was taken to Crozer-Chester Medical Center initially then transferred to Children's Hospital of Philadelphia.
There is no immediate word on his condition.
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