A small fire was reported at Millstone Power Plant in Waterford on Wednesday afternoon.
There was a diesel fire around an external backup generator around noon, according to Waterford First Selectman Daniel M. Steward.
Crews from Millstone Fire Department were able to quickly extinguish the fire.
There was no release of radioactive material, according to Dominion Power. They added there was no threat to the public.
There were no reported injuries and there was no disruption of service.
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