The office of Iranian President Masoud Pezeshkian condemned the killing of Supreme Leader Ayatollah Ali Khamenei “as a great crime” and vowed to respond, according to a statement from his office, Al Jazeera reported.

Multiple explosions have been reported in key cities across the Gulf, Al Jazeera reported.

The Islamic Revolutionary Guard Corps (IRGC) has reportedly issued a statement responding to the death of Iran’s Supreme Leader Ayatollah Ali Khamenei, saying “we have lost a great leader and we mourn him,” Al Jazeera reported citing Fars News Agency.

The Qatari Ministry of Interior has reportedly stated that 16 people have been wounded following the attacks, Al Jazeera reported, citing local authorities.

The Islamic Revolutionary Guard Corps (IRGC) has announced the start of what it called “the most devastating offensive operation in the history of the Islamic Republic of Iran,” Al Jazeera reported, citing Iranian media.

A drone has crashed near Erbil International Airport in northern Iraq, local media reports said, as cited by Al Jazeera.

 Iran has announced that a three-person council will temporarily assume all leadership duties in the country, Al Jazeera reported citing Iranian news agency IRNA.

Iran has confirmed the deaths of Ali Shamkhani, a top political advisor to Supreme Leader Ayatollah Ali Khamenei and secretary of the country’s Defense Council, Al Jazeera reported citing IRNA News Agency.