Iran must stick by a deal that would limit its uranium enrichment if it wants to improve relations with the European Union, AP qouted EU leaders as saying Friday. Western diplomats said this week Tehran had rejected a plan proposed by International Atomic Energy Agency chief Mohamed ElBaradei at talks last week involving Iran, the U.S., Russia and France. The plan calls for Iran to export most of its enriched uranium, offering instead to enrich it to a higher level inside the country under U.N. supervision. EU leaders expressed «grave concern over the development of Iran"s nuclear program, and Iran"s persistent failure to meet its international obligations,» according to a draft statement circulating on the second day of a two-day EU summit in Brussels. The statement also urged Iran to agree to the U.N. atomic watchdog"s scheme for supplying nuclear fuel to Tehran"s research reactor. -- SPA