Iran's foreign minister met the head of the United Nations' nuclear agency on Sunday to discuss a nuclear fuel swap proposal that could help ease Tehran's dispute with the West, Iranian officials and media said. Foreign Minister Manouchehr Mottaki told Iranian state television before his meeting with Yukiya Amano of the International Atomic Energy Agency (IAEA) that their talks would be "decisive and detailed". Iranian officials in the Vienna delegation confirmed to a British news agency the two men had met but they gave no more information. "The IAEA...can play a more constructive role," Mottaki said in his earlier comments. "We believe the fuel swap can create multilateral trust." Iran, the world's fifth-largest oil exporter, says its nuclear programme is entirely peaceful and not intended for military use.