UPDATE 4-Iran breaches 2015 nuclear deal's stockpile limit - sources

Iran has breached the limit of its enriched uranium stockpile set in a 2015 deal with major powers, two sources told Reuters on Monday, defying a warning by European co-signatories to stick to the deal despite U.S. sanctions."As we announced when we said our steps would continue, the stockpile has passed 300 kg," one of the sources said.The semi-official Fars news agency quoted a source as saying that the United Nations' International Atomic Energy Agency (IAEA) had measured the stockpile on Mon