CHICAGO (CBS) — A busy stretch of Dearborn Street was closed for about an hour during the Friday evening rush, as police and fire officials investigated a suspicious package.

Police closed off Dearborn between Randolph and Lake streets around 4:45 p.m.

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Chicago police shut down Dearborn Street between Randolph and Lake streets on Sept. 21, 2018, to investigate a suspicious package found in the area. (Credit: CBS)

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A Fire Department official said authorities were responding to reports of a suspicious package. Police said the package smells like gas.

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Officers at the scene could be seen checking out a black backpack. After K-9 units and the bomb squad checked out the package, and confirmed it contained nothing dangerous, police began reopening the street around 5:45 p.m.