Police responded to a report of a suspicious package in the Woodrow Wilson Bridge, Maryland State Police said.
Police closed the bridge in both directions about 9 p.m. The bridge reopened about 10:20 p.m.
The package turned out to be a box of loose wires, state police said.
State police said the Prince George's County Bomb Squad is at the scene.
The suspicious package was a brown cardboard box with red wires and duct tape, state police said.
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