Thick black smoke was reported rising above a residential area in eastern Tehran on [insert date], suggesting a subsurface fire at an underground facility. Observers noted that while smoke billowed vertically between Soviet-style apartment blocks during sunset, no surface flames were visible. Cars and pedestrians in the vicinity appeared unaffected, indicating that the blaze was contained below ground.

The incident aligns with unconfirmed reports circulating on Iran International and social media, indicating a potential explosion and fire at an alleged military base in the area. Analysts have noted the possibility that the affected site is linked to the Khojir complex, a known underground ballistic missile production facility, though official confirmation has not been released.

If verified, the event would represent a significant disruption to Iran’s military infrastructure, underscoring the challenges of monitoring and securing underground strategic assets. Observers continue to assess satellite imagery and open-source reports for additional insights, while Tehran authorities have yet to provide a formal statement on the cause or scale of the fire.