Negotiations between six world powers and Iran over its nuclear program have been "tough and very serious" and the next few days will show whether Tehran is ready to make the necessary hard decisions, a senior U.S. official said on Friday.
Iran's top leader voiced mistrust on Saturday of U.S. efforts to reach a nuclear deal, even as Washington and its allies spoke of real progress and urged Tehran to take "difficult decisions".
Iran had a "deeply troubling" number of executions last year and did not keep a promise to protect ethnic and religious minorities, the United Nations said on Tuesday in its annual report on Tehran's human rights record.
Iranian President Hassan Rouhani has dispatched his brother and atomic chief to Geneva to try to overcome hurdles in high-profile nuclear talks with the United States and five other major powers, official Iranian media reported on Saturday.
