PARIS (Reuters) -France’s nuclear watchdog ASN on Wednesday said it had found no traces of nuclear radiation after a fire broke out at a plant containing uranium in southeastern France run by EDF unit Framatome. “No radioactive substance was affected by the fire”, the watchdog said, adding that it de-activated its emergency centre in the evening as the fire had been brought under control. More extensive checks will be carried out by a special research team on Thursday. A Framatome spokesman earlier said no staffer was harmed. Framatome is a unit of French nuclear energy giant EDF. According to…