MINNEAPOLIS (WCCO) — If you happened to drive past the construction site for the forthcoming U.S. Bank Stadium in downtown Minneapolis, you may have had cause for alarm.

A plume of smoke could be seen late Friday morning at the site.

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The construction firm working on project confirmed there had been fire, which workers extinguished immediately.

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The workers were welding metal decks and sparks fell onto nearby insulation material, said a representative from Mortenson.

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The representative said no one was injured in the incident and work continued immediately afterward.