U.S.: Iran Nuclear Developments Are 'Troubling'
The United States says it is seeing "troubling developments" in Iran's nuclear program, calls on Rouhani to take concrete steps.
The United States says it is seeing "troubling developments" in Iran's nuclear program, calls on Rouhani to take concrete steps.

The IAEA says Tehran has now installed more than 1,000 advanced centrifuges at its Natanz enrichment plant.

U.S. institute tracking Iran's military program says recent satellite images show further major alterations at Parchin.

Arab nations are re-launching efforts to single out Israel over its alleged nuclear arsenal.

Foreign Policy: ElBaradei had been approached by John Kerry to be prime minister under Morsi.

The Iranian ambassador to the IAEA says Iran determined to take advantage of peaceful nuclear energy.

Talks with Iran over its nuclear program are “going around in circles,” said Yukiya Amano, director general of the IAEA.

Iran is opening up a potential second route to developing a nuclear bomb, says latest IAEA report.

The IAEA says it will hold a new round of talks with Iran on May 15 in Vienna on suspected nuclear bomb-making efforts by Tehran.

UN atomic agency says it has been discussing with Iran possible dates for 10th round of talks on nuclear program.

IAEA deputy director Rafael Grossi, one of the top officials in negotiations over Iran's nuclear program, has announced his resignation.

The United Nations’ nuclear agency reluctantly has reported that Iran appears to be working on an atomic weapon of mass destruction.

The United States is warning Iran has taken “further provocative actions” rather than moved towards cooperation on nuclear activities.

Six world powers say they are "deeply concerned" by Tehran's recent atomic upgrades.

Yukiya Amano calls on Iran to allow access to the Parchin military base, where nuclear weapons research may have taken place.

Iran is adding thousands of advanced centrifuges to further enrich uranium into nuclear fuel, state-run media reported Sunday.

Iran has claimed that the latest report by the IAEA is proof that its nuclear program is intended only for peaceful purposes.

Iran is continuing to get closer to the “red line” that Prime Minister Binyamin Netanyahu set at the United Nations last September.

Iran has begun installing next-generation equipment at one of its main nuclear plants, new IAEA report finds.

Tehran has started to install machines at its main uranium enrichment site that are capable of accelerating production of reactor fuel.

The IAEA has failed to reach a deal with Iran on halting – or even slowing down – the country’s nuclear development activities.

Iran agrees on "some points" in talks with UN atomic experts in Tehran, two weeks before meetings with world powers.

Sanctions imposed by West on Iran succeeded in cutting Tehran’s oil export revenue by $40 billion in 2012.

A delegation from the International Atomic Energy Agency arrived early Wednesday in Tehran for new talks on Iran's disputed nuclear program.

Iran appears to have resumed converting small amounts of its higher-grade enriched uranium into reactor fuel, diplomats say.

The International Atomic Energy Agency says there has been no sign of an explosion at the Fordow uranium enrichment plant in Iran.

IAEA team returns from Iran without a deal on additional inspections, diplomats skeptic that more talks could bridge the differences.

Iran and the International Atomic Energy Agency agree to resume talks over the country’s nuclear activities in Tehran on February 12.

Experts from the UN's nuclear watchdog agency arrive in Tehran for another round of talks to resolve concerns over Iran's nuclear program.

Iran and the UN nuclear watchdog prepare for a new round of talks, with Tehran expressing hope for a deal.

IAEA chief says he's not hopeful of striking a deal with Iran on allegations of past nuclear weapons research.

Iran and the UN atomic watchdog agree to resume negotiations in Tehran on January 16.

Israel is suspected of carrying out a series of leaks implicating Iran in nuclear weapons experiments, according to the British Guardian.

A visit to Iran's Parchin military complex will be useful despite the clean-up activities there, says IAEA Chief Amano.

Head of IAEA said he was "confident" no sensitive information had been stolen during hacking incident.

Iranian hackers break into the computer systems of the International Atomic Energy Agency, publish confidential material.

Iran is planning to build a nuclear bomb with at least triple the force of the bomb that destroyed Hiroshima in World War II, diagrams show

President Barack Obama promises to launch a new diplomatic push to solve the longstanding crisis over Iran's nuclear program.

The UN atomic agency says it will hold in December its first talks with Iran since August over Tehran's nuclear program.

United Nations nuclear agency chief Yukio Amano told the UN General Assembly Monday Iran is not cooperating with its investigation.

The White House has denied reports of talks between the US and Iran over Tehran's nuclear development program.

Iran has added more uranium enrichment centrifuges at its underground Fordow nuclear plant, diplomats report.

A report in the Wall Street Journal has warned that Iran will be able to produce weapons-grade nuclear fuel in the next two to four months.

Iran has accused the United Nations' nuclear agency of sharing its classified information with Israel.

The West has long suspected Iran of misleading it over its nuclear program – and now a top Iranian official has admitted as much

The head of Israel's Nuclear Energy Commission, Shaul Horev, warns Iran that Israel can defend itself on its own.

Assad refusing to cooperate over a suspected undeclared reactor destroyed by Israel in 2007.

The UN atomic agency's board approves with a crushing majority a resolution criticizing Iran. China and Russia vote in favor.

New IAEA resolution criticizes Iran over its defiance of UN Security Council resolutions and its refusal to allow IAEA inspections.

IAEA chief Yukiya Amano calls on Iran to open up the Parchin military site, where it may have covered up traces of nuclear activity.

The Obama administration has no “deadline” for Iran, says Hillary Clinton in an interview that is bound to be far from welcome in Israel

The IAEA tries to get tough with Iran at the same time it is expected to report Iran has installed 350 new centrifuges since May.

Another round of talks between the IAEA and Iran regarding its nuclear program ends without progress. No new talks scheduled.

Ahead of a new IAEA report, diplomats reveal that Iran has installed hundreds of centrifuges at its underground facility in Fordo.

IAEA to renew its efforts to gain access to Iranian military installations in which nuclear experiments may have taken place.

Iran now has 11,000 centrifuges enriching uranium, President Mahmoud Ahmadinejad says.

Satellite image exposed by ISIS shows Iran is continuing its suspected clean-up activity at the Parchin Military complex.

IAEA and Iran fail to agree a deal which would allow the agency greater access to Tehran's contested nuclear program.

The world nuclear watchdog resumed its bid for access to Iranian nuclear sites where atomic weapons research is suspected

Ahead of a third round of nuclear talks between Tehran and the P5+1, Iran accuses the UN nuclear watchdog of espionage
