Iran's president Hassan Rouhani said April 21 that his country is only negotiating a return to the 2015 nuclear deal and not a "JCPOA Plus".
Saudi Arabia and Iran plan further direct talks, Middle East officials and sources told Reuters, to ease tensions and find a solution for the conflict in Yemen.
According to a report issued by Amnesty International, Iran carried out roughly half of all executions worldwide, excluding China that keeps numbers secret.
President Hassan Rouhani has derided Iran's state-run TV (IRIB) for airing a documentary highly critical of the revival of the 2015 nuclear agreement.
Candidates in Iran's presidential elections sound critical of the status quo, but their criticism is usually aimed at easy targets, not the Supreme Leader.
Diplomats negotiating over Iran's nuclear program in Vienna will try to sequence the lifting of US sanctions with Iranian steps to return to its commitments under JCPOA.
Iranian officials have confirmed that talks took place with Saudi Arabia apparently aimed at restoring relations severed five years ago between the two regional rivals.
Iran's social instability has reached a dangerous level with nearly 60 percent on verge of poverty. There is talk of reforming the tax system to help the lower classes.
All participants in the Iran nuclear talks in Vienna are expressing optimism about the process, as some talk about drafting an agreement for reviving the JCPAO.
Canada has avoided saying Iran downed the Ukrainian flight PS-752 deliberately last year, as Ukraine has accused Tehran of doing so.