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Hamas has said its political leader Ismail Haniyeh was killed in an Israeli strike in Iran early on Wednesday, an attack that dramatically raises the risk of a further escalation of regional hostilities.
The Palestinian militant group said in a statement that Haniyeh, who lived in exile, died after a “treacherous Zionist” attack on his residence in Tehran. Iran’s elite Revolutionary Guards confirmed that Haniyeh was killed in an attack in the Iranian capital but did not provide further details.
The killing of Haniyeh came hours after Israel said it had killed a senior Hizbollah commander in an air strike on Beirut, the Lebanese capital, heightening fears that the region was sliding towards a full-blown war.
Israel did not immediately comment on Haniyeh’s death and typically neither confirms or denies assassination attempts on foreign soil. Israeli officials have previously said they would hold all Hamas leaders accountable for the group’s October 7 attack on southern Israel.
The Hamas leader, believed to be in his 60s, had been living in exile in Qatar but often travelled to Iran, which supports Hamas as part of its so-called axis of resistance. Haniyeh had attended the inauguration of Iran’s new president Masoud Pezeshkian on Tuesday and met him earlier in the day.
“Yesterday, I raised his victorious hand and today I must carry him on my shoulders in his funeral procession,” Pezeshkian said of Haniyeh in a post on X, adding that the attack would make Iran’s bonds with anti-Israel militias in the region “stronger”.
Haniyeh, who has been Hamas’s political leader since 2017, is the highest-profile member of Hamas to be killed following the militant group’s October attack and Israel’s retaliatory offensive in Gaza. He was the main interlocutor for mediators trying to negotiate a ceasefire in Gaza and the release of Israeli hostages held in the strip.
His killing in Tehran will mark a huge embarrassment for Iran and risk the regime retaliating against Israel. Tensions in the region had already soared after Israel said it had killed Fuad Shukr, a senior Hizbollah commander, in an air strike on a residential building in southern Beirut on Tuesday.
In a statement on Wednesday, Hizbollah said Shukr was in the building targeted by Israel, but the group did not confirm his fate.
The Israel Defense Forces described Shukr as Hizbollah’s most senior military commander and right-hand man to Hassan Nasrallah, leader of the Iran-backed Lebanese militant group.
The attack, Israel’s first targeting a Hizbollah leader in Beirut since October 7, came in retaliation for a rocket strike on Saturday that killed 12 young people on a football pitch in the occupied Golan Heights. Israel blamed Hizbollah for that attack, the deadliest incident for civilians in Israeli-controlled territory since the two sides started exchanging almost daily fire nearly 10 months ago.
Lebanon’s state-run National News Agency said the Israeli strike on Beirut on Tuesday, carried out with a drone that launched three rockets, had targeted the area around Hizbollah’s governing Shura Council in the densely populated Haret Hreik neighbourhood, a stronghold of the militant group.
A large explosion ripped through the area, with television footage showing several floors of a residential building badly damaged and large plumes of smoke. At least three people were killed — a woman and two children — and a further 74 people were injured, some critically, the Lebanese health ministry said.
Hizbollah, considered one of the world’s most heavily armed non-state actors, has previously warned Israel against “any assassination on Lebanese soil against a Lebanese, Syrian, Iranian or Palestinian”, suggesting the Israeli strike would be met with a decisive response.
In a statement mourning Haniyeh, Hizbollah said his killing would “increase the determination and stubbornness of the resistance fighters in all resistance arenas to continue the path of jihad and will make their resolve stronger in confronting [Israel]”.
There will also be concerns about how Iran, which considers Hizbollah its most important proxy, will respond, particularly if it is confirmed that Israel conducted the strike in Tehran that killed Haniyeh.
Iran’s foreign ministry said Haniyeh’s blood “will not go to waste” and “will strengthen the deep and unbreakable bond between the Islamic Republic of Iran and Palestine and the resistance”.
Turkey’s foreign ministry condemned Haniyeh’s killing, warning that it risked widening “the war in Gaza to a regional scale”.
It added: “If the international community does not take action to stop Israel, our region will face much larger conflicts.”
The US has been leading a flurry of diplomatic efforts to de-escalate tensions between Israel and Hizbollah since the rocket attack on the Golan Heights.
UK foreign secretary David Lammy said on Tuesday that the risk of further escalation “and regional destabilisation is now more acute than ever”.
“A widening of this conflict is in nobody’s interest,” Lammy said in a statement to parliament. “Indeed, the consequences could be catastrophic. That is why we continue to press for a diplomatic solution.”
Additional reporting by Najmeh Bozorgmehr in Tehran and Adam Samson in Ankara