Security correspondent Gordon Corera looks at what is likely to happen now that joint US and Israeli attacks have taken out some of the Iran's most senior leadership.

Israel said senior political and military leaders were struck in sweeping strikes across Iran

The goal of the US-Israeli strikes is ambitious. The top target on their list was Iran's Supreme Leader Ali Khamenei, whose death was confirmed by Iranian state media on Sunday.…

A piece of crucial intelligence arrived just hours before the attack on a compound in central Tehran.

Iran's surviving leaders are in crisis mode, battling to project security as US and Israel strikes continue.

Nine Israelis killed by missile strike on a shelter as Tehran announces it has lost several top leaders to US and Israeli attacks

Retaliatory strikes have so far been high in volume but mostly not very effective and are likely to become less so

Strikes keep hitting Tehran, but Iran's surviving leaders close ranks and vow revenge after Ayatollah Khamenei's death.

While Hezbollah launches preemptive strikes, Tehran tells Al Jazeera it doesn't need outside help in defending itself.

Security correspondent Gordon Corera looks at what is likely to happen now that joint US and Israeli attacks have taken out some of the Iran's most senior leadership.

The killing of Ayatollah Ali Khamenei, Ali Shamkhani, Mohammad Pakpour, and others, has opened a void in Iran's leadership circles. See who remains.