There have been signs that Iran will take tougher measures in retaliation for the killing of Hamas leader Ismail Haniyeh.

Israel has not commented directly on the attack that killed Ismail Haniyeh in Tehran on Wednesday morning. Still, Israeli Prime Minister Benjamin Netanyahu has said that Israel had succeeded in hitting back at its enemies in recent days, pointing to the killing of Hamas leader Ismail Haniyeh and the killing of a senior Hezbollah commander in Lebanon shortly before the Tehran attack. A few hours before Hanieh’s murder, Israel also killed senior Hezbollah operative Fuad Shukr in Beirut.

Meanwhile, Hamas’ armed wing said the death of Haniyeh, seen as the overall leader of the Hamas group, would “take the fight to a new dimension” and have far-reaching consequences. However, it has not been decided how Iran will respond to the killing, and it is indicated that it may further promote the war in the Middle east countries. Haniyeh, who played a key role in negotiating a cease-fire in Gaza, was killed hours after attending the swearing-in ceremony of Iran’s new president, Massoud Pezheshkian.

Thus, in the middle of the growing conflict in the Middle east, the United States has advised its citizens not to travel to Lebanon, while the British Foreign Secretary has asked citizens to leave the country. Also, many international airlines have canceled their flights in that area.

On October 7, attack on Israel killed about 1,200 people. Since the conflict , Israel started the war to destroy Hamas.