The UN nuclear watchdog is in discussions with Iran on the origin of uranium particles enriched to up to 83.7 percent purity, very close to weapons grade, at its Fordow enrichment plant, a report by the watchdog seen by Reuters confirmed on Tuesday. Diplomats said last week that the agency had found the traces at the Fordow Fuel Enrichment Plant (FFEP), where Iran is enriching uranium to up to 60 percent purity.
