TEHRAN: An official
investigation
into the
helicopter crash
in May that killed
Iran
's Prez
Ebrahim Raisi
and seven other people found it was caused by challenging climatic and
atmospheric conditions
, Iranian state TV said Sunday.
The final report of the
Supreme Board of General Staff of the Armed Forces
said the main cause of the helicopter crash was the complex
climatic conditions
of the region in spring.
The report also cited the sudden appearance of a thick mass of dense fog rising upwards as the helicopter collided with the mountain. According to the report, there were no signs of sabotage in parts and systems.
The army in May similarly said it had found no proof of criminal activity in the crash.