Iranian Protesters Demand Supreme Leader Step Down

Protests erupted in Iran demanding the supreme leader's resignation after the government admitted to mistakenly shooting down a Ukrainian airliner, killing 176 people. Initially, Iran denied responsibility but later attributed the incident to human error during heightened military alertness. Protesters accused the government of a cover-up and called for prosecution of those responsible. Iran's president promised ongoing investigations, while the Ukrainian president confirmed Iran's formal apology to Ukraine and the victims' families.

What did the Iranian President Hassan Rouhani state regarding the investigations?

What action did Iran take towards Ukraine and the relatives of the deceased?