“The investigation in the case of Ayatollah Raisi’s helicopter crash have been completed … there is complete certainty that what happened was an accident,” the security source, who was not named, told Fars.
Two reasons for the accident were identified: the weather conditions were unsuitable and the helicopter was unable to handle the weight, leading to it crashing into a mountain, the source added, according to Fars.
The investigation indicates that the helicopter was carrying two people more than the capacity that security protocols allow, the source told Fars.
Raisi, once a potential successor to Supreme Leader Ayatollah Ali Khamenei, was killed in the crash in mountainous terrain near the Azerbaijan border.