Among the dead was Iranian Foreign Minister Hossein Amirabdollahian, 60. The helicopter also carried the governor of Iran’s East Azerbaijan province, a senior cleric from Tabriz, three crew members and a Revolutionary Guard official, the state-run IRNA news agency reported. IRNA said the crash killed eight people in all, including three crew members, aboard the Bell helicopter, which Iran purchased in the early 2000s.
The crash took place in a mountainous area under heavy fog.
I would guess this doesn’t actually lead to regime change in Iran, because the countries Supreme Leader, Ayatollah (85) was not aboard the craft.