The eastbound Roosevelt Road entrance ramp to the inbound Eisenhower Expressway was shut down by police. By around 6:30 a.m., the ramp was reopened.
Chopper 7 flew above the scene as dozens of police were on the scene and along the Tri-State Tollway and surrounding neighborhoods.
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Illinois State Police and from surrounding departments including Oak Brook, Lombard, Elmhurst and Villa Park are responding.
Further details on what has led to the closure were not immediately available.