Images: Pittsburgh standoff

Posted: 11:51 AM EDT Sep 21, 2012   Updated: 1:37 PM EDT Sep 21, 2012

Police work to resolve an armed hostage situation on the 16th floor of a building in downtown Pittsburgh.

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Keith Srakocic, AP

People evacuated by Pittsburgh police from the Gateway Three office building, left rear, wait outside as the police negotiate with a man who claims to have a bomb in a suite in the sixteenth floor, in downtown.