TEHRAN (Press Shia Agency) – The International Atomic Energy Agency (IAEA) confirmed that Iran has shipped 11 tons of heavy water out of the country as part of its obligations under last year’s nuclear deal between Tehran and world powers.

According to a diplomat citing a confidential UN nuclear watchdog report, Iran has shipped 11 tons of heavy water abroad to bring its stock back under the limit of 130 tons set by the July 15 nuclear deal, also known as the Joint Comprehensive Plan of Action (JCPOA), Reuters reported.

"On 6 December the agency verified the quantity of 11 metric tons of the nuclear-grade heavy water at its destination outside Iran," the diplomat added.

"This transfer of heavy water out of Iran brings Iran's stock of heavy water to below 130 tons," it said, adding that Iran had told the agency that the shipment left the country on November 19.

The report substantiated an Iranian statement last month about a transfer to Oman but does not identify the destination.

On November 22, Iran’s nuclear chief said Iran had shipped around 11 tons of its excess heavy water, a material used as a moderator in nuclear reactors, to Oman as part of the deal.

Head of the Atomic Energy Organization of Iran (AEOI) Ali Akbar Salehi said the country sent the cargo of heavy water to Oman after the other parties to the JCPOA expressed readiness to purchase the product.

Heavy water is used in some nuclear reactors, but is not radioactive.

Under the JCPOA, which came into force in January, Iran is allowed to use heavy water in its modified Arak nuclear reactor, but should sell any excess supply of both heavy water and enriched uranium on the international market.