Watch CBS News

Mysterious "accident" at Iran weapons facility with suspected links to nuclear program kills engineer

Negotiators try to revive Iran nuclear deal
How Russia's invasion of Ukraine impacts the Iran nuclear deal 03:19

Tehran, Iran — An unexplained incident struck a major Iranian military and weapons development base east of Tehran, the country's state TV reported on Thursday, killing an engineer and injuring another employee. Iran's Defense Ministry said the "accident" occurred on Wednesday afternoon at a research center at the Parchin military complex.

The ministry did not elaborate on the cause of the accident or provide any further details, but said an investigation was underway. It identified the engineer who died as Ehsun Ghadbeigi.
 
Parchin is home to a military base where the International Atomic Energy Agency previously said it suspected Iran conducted tests of explosive triggers that could be used in nuclear weapons. Iran long has denied seeking nuclear weapons, though the IAEA previously said Iran had done work in "support of a possible military dimension to its nuclear program" that largely halted in late 2003.

The military complex at Parchin, Iran, about 19 miles southeast of Tehran, is seen in this Aug. 13, 2004, satellite image provided by DigitalGlobe and the Institute for Science and International Security.
The military complex at Parchin, Iran, about 19 miles southeast of Tehran, is seen in this Aug. 13, 2004, satellite image provided by DigitalGlobe and the Institute for Science and International Security. AP Photo/DigitalGlobe - Institute for Science and International Security

Western concerns over the Iranian atomic program led to sanctions and eventually to Tehran's 2015 nuclear deal with world powers. The U.S. under President Donald Trump unilaterally withdrew from the accord in May 2018, leading to a series of escalating attacks between Iran and the U.S. and Tehran abandoning the deal's production limits.

Ongoing negotiations led to hopes in March that a roadmap could be agreed that would see the United States rejoin the accord that Trump pulled the country out of in 2018, and for Iran to again limit its rapidly advancing nuclear program. But that month, the European Union's foreign policy chief said "a pause" was needed in the talks, blaming "external factors" for the delay.

While the EU's top diplomat didn't elaborate, his remark came soon after Russia — another party to the nuclear talks with Iran — tied the ongoing negotiations to sanctions that Moscow has been hit with over its war on Ukraine. Regardless of the cause, the talks have remained stalled since March.

Iran nuclear talks resume in Vienna 04:33

Since the U.S. withdrawal from the nuclear pact in 2018, Tehran has steadily ratcheted up its nuclear development. The country insists it is only for civilian purposes, but Iran now enriches uranium up to 60% purity — its highest level ever and a short technical step from weapons-grade levels of 90%.
 
In 2015, the IAEA's then-director-general visited one suspected weapons-program site at Parchin and inspectors took samples there for analysis.
 
Iran's missile and space programs have suffered a series of mysterious explosions in recent years. A giant unexplained blast struck in the area of Parchin in the summer of 2020, rattling the capital and sending a massive fireball into the sky near Tehran.

View CBS News In
CBS News App Open
Chrome Safari Continue
Be the first to know
Get browser notifications for breaking news, live events, and exclusive reporting.