- Moussa Abu Marzouk called the raid a "cowardly act that will not go unpunished," according to the Hamas-run Al-Aqsa television channel.
- Several senior Hamas figures are believed to have been killed by Israel since - including deputy political leader Saleh al-Arouri and Marwan Issa, the deputy commander of Hamas's military wing.
Image: EPA
A senior Hamas official has vowed that the group will respond to Ismail Haniyeh's assassination.
Moussa Abu Marzouk called the raid a "cowardly act that will not go unpunished," according to the Hamas-run Al-Aqsa television channel.
Hamas has claimed Haniyeh was killed in a "Zionist raid".
Israel is yet to respond to the allegation but in the wake of the 7 October attacks - which killed 1,200 people and saw hundreds taken hostage - Israeli leaders vowed to "crush and destroy Hamas".
Several senior Hamas figures are believed to have been killed by Israel since - including deputy political leader Saleh al-Arouri and Marwan Issa, the deputy commander of Hamas's military wing.
Ismail Haniyeh's three sons and four of his grandchildren were also killed in an Israeli air strike in Gaza in April.
Israel and Iran have long been engaged in a shadow war - often attacking each other without admitting responsibility.
But Iran believes Israel has also carried out several targeted assassinations on its soil.
Some of the most notable cases include the killing of Iran’s top nuclear scientist Mohsen Fakhrizadeh by a remote-controlled weapon in 2021, and the shooting of a Commander of Iran’s Revolutionary Guards, Col. Sayad Khodai, in Tehran in May 2022.
What we know so far about the death of Hamas's leader Ismail Haniyeh:
- In a statement on Wednesday morning, Hamas said Haniyeh had been killed by an Israeli raid while on a visit to Tehran to attend the inauguration of President Masoud Pezeshkian
- Iran's Revolutionary Guard Corps has also confirmed his death
- Israel's military and senior figures within its government are yet to respond to the allegation
- The death of Haniyeh - who had long led Hamas's political operations while living in exile in Qatar - has dealt a severe blow to the Palestinian group
- It comes just hours after an Israeli strike on a senior Hezbollah commander in Beirut, in retaliation for a rocket attack in the Israeli-occupied Golan Heights over the weekend that killed 12 people
- The targeted attacks on two senior Iran-backed militant leaders in the space of 24 hours has raised fears of further conflict in the region
- A senior Hamas official has said that the group will respond to Haniyeh's assassination, calling it "a cowardly act that will not go unpunished"
- Israel has repeatedly vowed to "destroy' senior figures within Hamas's leadership, following the 7 October raid near the Israel-Gaza border, which left 1,200 people dead and saw hundreds taken hostage