A fire broke out at a nuclear power station in East Lothian.
Crews were called to Torness at 12.25am on Friday after lagging on a pipe caught fire.
Staff on site had managed to put out the flames before firefighters arrived but they stayed for three hours to make sure the fire did not start again.
The fire was not in the radiological part of the power plant, which is operated by French firm EDF energy.
A spokeswoman for Lothian and Borders Fire and Rescue Service said: “There was a small fire in oil-soaked lagging. It was extinguished prior to arrival, Torness fire team had dealt with it.
She said firefighters “stood by just in case it reignited because of the nature of the building”.
Station director Paul Winkle said: “The fire originated on a hot, lagged pipe. There was a small amount of smoke which was noticed by our operations staff.
“The fire was immediately extinguished by the Torness fire team. As usual, Torness staff responded impeccably.
“As a precaution the local fire and rescue service were called to site and along with the station fire team declared that the fire was successfully extinguished.
“I want to reassure you that at no time was there, or is there likely to be, any danger to the public. No persons have been injured and there has been no significant impact to the environment.”