Deputy nuclear negotiator Javad Vaeedi, leading the Iranian team, declined to comment as he headed into the closed-door talks with Olli Heinonen, deputy director-general of the International Atomic Energy Agency.
IAEA chief Mohamed ElBaradei said earlier this month that Iran has scaled back its uranium enrichment program, suggesting there was a new willingness from the government to resolve the international deadlock over its nuclear stance.
The IAEA said Tuesday's talks in Vienna were an attempt to clarify "the open issues associated with the scope and content of Iran's enrichment program."
Iran insists its nuclear program is peaceful and geared solely toward producing electricity; the United States accuses it of covertly trying to build a nuclear weapon.
Russian Finance Minister Anton Siluanov announced a possible move that Russia can take in response to new US sanctions
Not that long ago, American soldiers would train their skills to counter insurgent and partisan military organizations. These days, they are trained to show resistance to the regular army of a potential adversary
The Central Bank of Turkey announced measures to protect the financial market of Turkey against the background of the collapse of the Turkish lira and conflict of interests with the United States of America