The accident was reported at the Avalon on Stamford Harbor Marina off Southfield Avenue.
Another crane was used to lift the fallen crane off a boat, and an oil spill boom was placed around the barge to limit any harm to the water, officials said.
The accident was reported at the Avalon on Stamford Harbor Marina off Southfield Avenue.
The Coast Guard, State Police and Harbor Master Mike Taylor were also on the scene.
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