Iran faces possible referral to the UN Security Council in early March unless Tehran and the UN atomic agency defy expectations in talks Wednesday and reach a deal on enhanced inspections.
The United States on Wednesday tightened sanctions on Iran to further choke off its oil income, saying it was necessary to increase pressure on Tehran over its suspected nuclear weapons program.
Agreeing a venue for the next round of talks between Iran and six world powers on Tehran's nuclear drive was hard enough. Achieving progress will be tougher still.
Iranian Foreign Minister Ali Akbar Salehi said on Sunday that fresh talks with world powers on Iran's nuclear drive would be held in Kazakhstan on February 25.
The former head of Iran's central bank, Tahmasb Mazaheri, has been found in possession of a cheque worth 54 million euros ($70 million) by German authorities.
Israel's foreign ministry said Monday it was "surprised" by Argentina's agreement with Iran to create an independent commission to investigate the 1994 attack on a Buenos Aires Jewish centre.
More than two months after US President Barack Obama's re-election opened the way for new six-power nuclear talks with Iran, no date or location for their first meeting since June has been set.
Experts from the International Atomic Energy Agency (IAEA) arrived in Tehran early Wednesday to try resolve long-running differences with Iran over its controversial nuclear programme.
Tehran hosts the UN atomic agency for talks on Wednesday, marking the start of a new and perhaps last-ditch diplomatic push aimed at resolving the crisis over Iran's nuclear programme peacefully.
President Barack Obama enacted a law Friday to counter Iran's alleged influence in Latin America, through a new diplomatic and political strategy to be designed by the State Department.
Israeli Prime Minister Benjamin Netanyahu on Tuesday put Iran at the top of on his re-election campaign, pledging that halting Tehran's nuclear programme would be his first priority as premier.
Ali Akbar Javanfekr, a senior aide to Iranian President Mahmoud Ahmadinejad, returned to jail on Monday after a four-day parole during which he underwent medical treatment.