The Iranian Rial fell to over 4,000 tomans against the US dollar in the free market on September 27th, following the imposition of UN sanctions against the Islamic Republic. The price of the "Emami" coin also surpassed 5 million tomans, while the euro reached approximately 4,000 tomans, according to Iran International. This currency depreciation occurred simultaneously with the UN sanctions. Further details on the specific UN sanctions were not immediately available in the provided sources. The economic impact on Iran is unfolding as the currency markets react to the international measures.