Lessons should be learned from problems with a French reactor that is very similar to one planned in the UK, says Britain's nuclear safety regulator.
French regulators have been informed of "manufacturing anomalies" in components "particularly important for safety" at Flamanville 3 power plant, in Normandy.
The reactor is similar to one planned for Hinkley Point, in Somerset.
EDF Energy - involved in both projects - said a new series of tests was under way and it was working with regulators.
An investigation revealed potential weaknesses in the steel used to make a safety casing around the reactor at Flamanville, near Cherbourg.
Areva, which is building Flamanville 3 for EDF, says it is the first plant in the "new French reactor fleet", and it includes Areva's new EPR reactor.
The UK Office for Nuclear Regulation said it was aware of the French Nuclear Safety Authority's concerns about the reactor and would continue to liaise with French authorities.
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http://www.bbc.co.uk/news/uk-32365888
