Details surrounding the operation that led to the killing of Hamas leader Ismail Haniyeh in Tehran remain unclear. Neither Iran nor Israel, which is suspected of being behind the operation, has provided specifics.
Yet, there are numerous reports that may provide clues for experts to speculate on how the operation was carried out – and whether it involved advanced weaponry or a sophisticated drone strike.
Where and when?
In one of its statements, the IRGC announced that the attack resulting in Haniyeh's death occurred at two in the morning and stated that he was killed by "a projectile from the air" while stationed at one of the "special residences for war veterans in northern Tehran."
Hours later, the Iran-aligned Lebanese network Al-Mayadeen reported that the missile used to attack Haniyeh's residence was launched not from within Iran, but from another country.
Since then, however, Israel’s Channel 12 reported that Iranian officials were coming to the conclusion that the projectile was actually fired from within the country’s borders.
Where did Haniyeh reside in Tehran?
Although the Iranian state’s Fars news agency reported that Haniyeh was staying at a special residence for war veterans in northern Tehran, little is known about the building.
Some unofficial sources inside Iran, have suggested that Haniyeh could have been killed near the Saadabad Palace – a historic royal complex located in the northern part of Iran’s capital. Boasting hundreds of acres, the complex has been used by the Islamic Republic for various official events for many years.
Some reports have also suggested that the Basij al-Zahra camp in the northwest of this complex was Haniyeh’s residence.
During President Akbar Hashemi Rafsanjani's administration, leading up to the Islamic Summit Conference in Tehran in 1991, a building was reportedly constructed at Saadabad Palace to accommodate special guests. This facility might have been used to host distinguished visitors, although specific details about Haniyeh’s residence there are not well-documented.
Was there an explosion?
Some local witnesses reported hearing an explosion in the Saadabad area early Wednesday morning.
State-run media outlet Tejarat Online published a story that suggested that the explosion's sound was "so loud that it triggered all the car alarms and was heard throughout northern Tehran, with smoke and dust from the explosion covering the area."
According to sources connected to Hamas, the building targeted in the attack was also occupied by his bodyguard, Ziad Nakhalah, the leader of Islamic Jihad, along with a Hamas delegation.
So far, however, there have been no reports indicating that these individuals were harmed.
In addition, no reports have emerged about other residents of the building being injured, leaving the door open to assume that despite the precision of any operation to kill Haniyeh, the explosion's power and intensity were likely limited.
Missile vs drone?
Although the IRGC's statement referred to "a projectile from the air," the origin of the projectile remains unclear.
Sky News Arabia reported that based on its Iranian sources, that the building Haniyeh was in, was targeted by a missile fired from a nearby building.
Aerial projectiles can be launched from either fighter jets or military drones. For such strikes, military aircraft would typically utilize the airspace of neighboring countries. While using the airspace of other countries without authorization and conducting operations near border areas is challenging, it is not impossible.
In Israel’s April attack on the 8th Tactical Airbase in Isfahan, American officials confirmed that Israeli aircraft launched three missiles from outside Iran's borders targeting a radar site protecting the Natanz nuclear facility. Iranian officials, however, attributed the incident to enemy drones at this military base.
According to Israeli Channel 14 military correspondent Hallel Bitton Rosen, however, the attack was not carried out by launching a missile, but with another weapon that exploded close to him.
Drawing on Israel’s past operations, the country has a history of conducting drone attacks on Iranian soil.
In February 2023, the Wall Street Journal reported that Israel was responsible for a drone attack on a Defense Ministry workshop complex in Isfahan and an explosion at a munitions center in the city. Iranian officials described the attack as "unsuccessful" and stated that it caused only limited damage.
What are some experts saying?
Israel has not claimed responsibility for the attack, but one Israeli and two US officials told Axios that Israel was behind the strike.
About two hours before Haniyeh’s death, Richard Goldberg, a senior advisor at the Foundation for Defense of Democracies, appeared to allude to the attack, saying "The Israeli Air Force is demonstrating its range tonight."
After the news of the killing of the Hamas leader broke, Goldberg, in reference to Israel striking Iran previously, posted on X: "If you can hit a radar next to a nuclear site, you can hit a house in Tehran. Ayatollah is exposed."
Major Andrew Fox, a researcher at the Jackson Institute and a former British paratrooper, told Iran International English that the attack might have been carried out with a missile launched from outside Iran. According to him, the Caspian Sea, given its proximity to Tehran, is a suitable option for this operation.
Fox, drawing on his experience and emphasizing that such missiles are guided with precise laser technology, said: "A soldier on the ground targets the laser pointer exactly at the point where he wants the missile to hit, guiding the missile to the impact point."
The expert also noted that Israel has missiles designed to use the kinetic energy from the speed and weight of the warhead for lethality. This explains why, in some missile attacks, fewer casualties and less noise are observed compared to those with explosive warheads.
Ronen Solomon, an Israeli intelligence and security analyst, highlighted the proximity of Baku and Tel Aviv, as well as Azerbaijan’s common border with Iran. He suggested that the use of Azerbaijani airspace for the attack is highly likely due to the short distance and the presence of Israeli weapons in the region.
These attacks became more frequent after July 2020, when a massive explosion occurred at the Natanz uranium enrichment site in central Iran, destroying one of the buildings. In November of that year, Mohsen Fakhrizadeh, a key figure in Iran’s nuclear program, was assassinated in a roadside attack near Tehran. Western and Israeli intelligence had long suspected Fakhrizadeh of being the architect of Iran’s covert nuclear weapons program.
Fakhrizadeh’s elimination rattled most echelons of the Iranian government, with different agencies subtly blaming one another for shortcomings that had led to the incident. It strengthened existing concerns that Israel had a strong network within Iran capable of using sophisticated weapons, having detailed information about the movement of key targets, and could pull off a complicated assassination and disappear without a trace.
However, spectacular attacks did not end with the killing of the top nuclear operative.
Since Fakhrizadeh’s assassination, which reportedly involved a high-tech, remote-operated machine gun, numerous small and large-scale attacks have continued to target various sites. While Israel has never acknowledged its involvement, it is widely believed that many incidents at military and industrial sites were the result of Israeli sabotage or drone attacks.
This latest attack occurred days after Iran’s Minister of Intelligence hailed the "dismantling of Mossad's infiltration network" as a pivotal achievement of former president Ebrahim Raisi's administration.
Esmail Khatib remarked last week, "Mossad's infiltration network had been assassinating our scientific figures and sabotaging critical centers. Under the thirteenth administration, this network and its access and capabilities have been eliminated."
Despite the persistent denials by Iranian officials, the series of targeted killings and sabotage reached such a critical point in 2021 that a former Minister of Intelligence, Ali Younesi, had expressed grave concern over the infiltration of Israel's intelligence agency, Mossad, into various sectors of the country, warning that officials should be "worried for their lives."
Younesi stated in 2021 that over the past "10, 15, or 20 years," while the country has been purged of all groups he labeled as "terrorist," there has been a significant failure in addressing the infiltration by foreign intelligence services, particularly those of Israel.
He emphasized that in the "last ten years, Mossad's infiltration into various sectors of the country is so extensive that all officials of the Islamic Republic should be worried for their lives."
In April 2021, another explosion at Natanz, this time in an underground part of the sprawling installation, hit the power supply for centrifuges and caused extensive damage that reportedly needed months of repairs. Some reports said that thousands of uranium enriching machines, called centrifuges, were destroyed.
Coupled with physical attacks, Israel allegedly launched many cyberattacks that created massive disruptions in Iran. In October 2021 a cyberattack knocked out a government database that issues fuel subsidized fuel cards to the population.
In May 2022, Revolutionary Guard intelligence operative Colonel Hassan Khodaei was shot five times outside of his home in Tehran. In May and June, following the assassination, two scientists reportedly died from poison in their food. Ayoub Entezari, an aerospace engineer, worked on missile turbines for a military research center in Yazd, central Iran.
Suicide drones were used to attack a military facility in Isfahan on January 28, 2023. Senior intelligence sources told Western media and that Israel’s Mossad was involved in the attack. It was reported that the site was an advanced weapon-production facility.
What is embarrassing and dangerous for the Iranian regime is the apparent extensive infiltration of Israeli networks in Iran. Ismail Haniyeh’s targeted killing on July 31 will go down in history as one of the most remarkable military-intelligence coups by Israel in the past eight decades.