Iranian President Masoud Pezeshkian has termed Supreme Leader Ali Khamenei’s death a “great crime”, vowing to make those responsible “regret it”, Al Jazeera reports.

“This great crime will never remain unanswered and will turn a new page in the history of the Islamic world and Shiism.

“The pure blood of this high-ranking leader will flow like a roaring spring and will eradicate American-Zionist oppression and crime,” a statement from his office said. 

“This time too, with all our strength and determination, with the support of the Islamic nation and the free people of the world, we will make the perpetrators and commanders of this great crime regret it,” it added.