Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Iran Nuclear Deal Nations to Meet, Seek Way to Save Pact Agence France-Presse VIENNA - Reuters contributed to this report. The remaining signatories to the Iran nuclear deal will meet in Vienna on Sunday to try again to find a way of saving the accord after the U.S. pulled out, amid mounting tensions between Tehran and Washington. On Sunday, in Geneva, Ali Akbar Salehi, the head of Iran's Atomic Energy Organization,told lawmakers that Iran will restart activities at the Arak heavy water nuclear reactor, the ISNA news agency reported. Heavy water can be employed in reactors to produce plutonium, a fuel used in nuclear warheads. In Vienna later Sunday, envoys from Britain, France, Germany, China, Russia and Iran will take part in the meeting, which comes a month after a similar gathering failed to achieve a breakthrough. Tensions between Tehran and Washington have escalated since last year when U.S. President Donald Trump pulled out of the accord that was aimed at curbing Iran's nuclear program, and imposed punishing sanctions. In retaliation, Iran said in May it would disregard certain limits the deal set on its nuclear program and threatened to take further measures if remaining parties to the deal, especially European nations, did not help it circumvent the U.S. sanctions. .