A worker was injured at an industrial plant in Nashua on Thursday.
The worker was taken to the hospital with non-life threatening injuries.
The building is occupied by Crane and the GL&V companies.
The Fire Chief did not confirm what happened inside of the plant, what the worker was doing at the time or the type of injuries he had.
Witnesses from nearby buildings said they heard there was an explosion and possibly, that man suffered some sort of electrocution.
The Fire Chief said they were able to get into specifics due of the nature of the work that is done in the building.
Police and fire department remain on scene.
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