A nuclear reactor has been shut down after smoke was seen coming from a plant in Lancashire.
The reactor at Heysham 1 nuclear power station was shut down at 18:00 BST on Thursday due to smouldering lagging on a turbine.
EDF, which operates the reactor, said it was shut down as a precaution.
Ian Stewart, station director, said: "Although this is a very minor incident we will be looking into the cause and ensuring that we learn any lessons."
EDF said the smoke was dealt with using a dry powder extinguisher.
Lancashire Fire Service attended but was not needed.