Rome, January 11 - European Union foreign policy chief Federica Mogherini said Monday she expects economic sanctions against Iran to be lifted soon. Iran and world powers led by the U.S. agreed to a landmark nuclear deal to limit Tehran's enrichment of uranium in exchange for lifting economic sanctions. Iran has always denied seeking nuclear arms. Speaking to reporters in Prague, Mogherini said there was no date set yet but that "the implementation of the agreement is proceeding well." Mogherini said it is necessary that all steps agreed have to be "properly done," including the work of the International Atomic Energy Agency. But after consulting recently the foreign ministers of Iran and the United States she believes "things are going well" and the sanctions might be lifted "rather soon."