Repairs are expected to take place at Hartlepool nuclear power station after an oil leak and small fire on lagging around a turbine in one of the reactors.
It was being brought back into service. Owners EDF say there was no danger to the public.
More top news
An E-fit has been issued of a man who may be connected with the disappearance of a toddler more than 35 years ago.
Two people have been convicted of a 'violent' attack at a Gateshead pub.
Crystal Palace fans mistakenly vandalised their own bus ahead of their team's match against Middlesbrough.