The next round of Iran nuclear negotiations will be “pretty tough,” a senior US official said on Wednesday ahead of new talks including top diplomats from the seven countries involved.
Iran and six major powers reached a framework nuclear deal on April 2 in Lausanne, Switzerland, and are seeking to strike a final agreement by June 30 under which Iran would restrain its nuclear program in exchange for relief from economic sanctions.
“As we expected after Lausanne, the next portion of this process will be pretty tough because we will be getting down to the details,” the official told reporters as negotiators from the seven prepared to converge on Vienna for a new round.
The United States, which is negotiating along with Britain, China, France, Germany and Russia, suspects Iran is trying to develop a nuclear weapons capability. Iran denies that, saying its program is for peaceful uses like making medical isotopes.