EDF Energy, which owns the Hartlepool Nuclear power station has released a statement after a "small fire" at the plant last night.
More than 10 fire engines attended the scene of the plant near Seaton Carew.
In a stament EDF Energy has confirmed there was a fire but says "there is no threat to the public or staff".
"EDF Energy confirms that at around 18:30 on 20 April a small fire was detected in the turbine hall of unit 2 at Hartlepool power station.
"The fire was quickly brought under control and any residual smouldering extinguished at 19:53.
"There were no injuries as a result of this incident and there is no threat to the public or staff.
"Unit 1 at the power station continues to operate normally."
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