Iran Builds Concrete Shield at Sensitive Military Site Amid Heightened US Tensions, Satellite Images Show

As tensions escalate between the United States and Iran, satellite images have revealed that Iran has constructed a concrete shield over a new structure at a sensitive military site.

According to recently released images, a new center at the Parchin complex, located about 30 kilometers southeast of Tehran, has been secured by covering it with earth.

Experts suggest this location is related to an area attacked by Israel in 2024. The images indicate that following the damage sustained then, Iran has undertaken reconstruction while implementing additional security measures. A new structure visible in October 2025 appears to have been completely covered by a concrete structure by February 16.

The Institute for Science and International Security (ISIS) stated in a January 22 analysis that the site, referred to as Taleghan-2, was seeing the construction of a concrete sarcophagus around it. According to ISIS founder David Albright, this could provide significant protection from aerial attacks.

Meanwhile, satellite images also show that the entrance to a tunnel at the Isfahan nuclear complex has been filled in, and another tunnel beneath a mountain has been further reinforced. Last year, the US attacked some of Iran's uranium enrichment centers in support of Israel during the conflict.

Western intelligence agencies have long suspected that nuclear explosive testing occurred at Parchin two decades ago. However, Tehran has consistently maintained that its nuclear program is solely for peaceful civilian purposes. Last year, US intelligence and the United Nations nuclear watchdog also reported finding no concrete evidence that Iran was developing nuclear weapons.

Separately, although some guiding principles were agreed upon during talks between the US and Iran in Geneva, no concrete achievements were made. The US has warned that military options will remain open if negotiations fail.

Furthermore, Israeli Prime Minister Benjamin Netanyahu has been pressuring US President Donald Trump to include Iran's missile program and regional influence in any agreement. Analysts suggest that as military preparations and diplomatic talks proceed concurrently, regional tensions have become even more sensitive.