CNN's Becky Anderson talks to Nobel laureate Shirin Ebadi about Iran's intentions in stepping up its uranium enrichment.
A soon-to-be completed U.S. assessment of Iran's nuclear program is expected to conclude that the government has resumed limited work on a nuclear weapon, according to a U.S. official.
Tens of thousands of people chanted anti-government slogans Monday before the funeral of a top Iranian cleric who turned into one of the regime's most vocal critics, a witness said.
Senior Iranian dissident cleric Grand Ayatollah Hussein Ali Montazeri died overnight, several state-run Iranian news agencies reported Sunday.
The United States and other envoys at the United Nations slammed Iran on Thursday for transporting arms and ammunition to Syria, saying the clock is ticking for the Islamic republic -- which could face tougher sanctions next year over its nuclear program.
The board of the United Nations' nuclear watchdog agency Friday sharply criticized Iran's nuclear activities in a resolution, and urged Iran to immediately suspend construction of its recently disclosed nuclear facility at Qom.
In a report published Monday, the United Nations nuclear watchdog group says Iran's disclosure of a previously secret nuclear facility near Qom raises questions about the existence of other such facilities.
United Nations-backed nuclear inspectors on Sunday visited a newly disclosed Iranian nuclear facility near the city of Qom, Iranian media has reported.
International officials arrived in Iran on Sunday to inspect a newly disclosed nuclear facility near the city of Qom, state media reported.
The Obama administration is working on a substantial sanctions package against Iran in case current diplomatic efforts to curb its nuclear program fail, top officials told Congress on Tuesday.
Days after Iran revealed the existence of a second uranium enrichment facility, the head of the United Nations' nuclear watchdog agency paid the country a visit.
President Obama says Iran must grant unfettered access to IAEA inspectors.
U.S. President Barack Obama called on Iran to provide the U.N. nuclear watchdog agency with "unfettered" access to the newly disclosed Qom uranium enrichment site, and Tehran's nuclear negotiator said the country would cooperate with inspectors.
Correspondent give a global perspective on concerns over Iran's nuclear ambitions.
The United States wants Iran to provide international inspectors with full access to a newly disclosed underground uranium enrichment plant that Obama administration officials say is both illegal and probably intended for developing weapons.
CNN's John King speaks with the U.S. defense secretary about the possibility of sanctions and China's role.
Hundreds of Iranians took to the streets here Monday night, hours after the country's supreme leader endorsed President Mahmoud Ahmadinejad for a second term in office.
Top clerics and seminary students in Iran's holy city of Qom have come out against the results of the disputed June Iranian presidential election, which was declared a landslide victory for the hard-line incumbent.
"There will be consequences" if Iran mistreats a British Embassy employee who was arrested in Tehran, British Foreign Secretary David Miliband said Sunday, as cracks began to appear in the Iranian leadership.
A witness describes beatings at a new protest under way in downtown Tehran.
Iraqi Shiite fighters who trained inside Iran to operate in assassination squads are starting to return home, the U.S. military told CNN.
Iraqi Shiite fighters are now been trained inside Iran as assassination squads, the U.S. military has told the Iraqi government.
Voter turnout is key in Iran, where reformists fight an uphill battle to get seats. CNN's Aneesh Raman reports.
Nearly half the members of Iran's parliament are criticizing the Islamic nation's supreme leader for ordering general elections to go ahead Friday despite widespread belief that they will not be free or fair.