Thousands of Iranians took to the streets across Tehran and various cities on Saturday, protesting the death of Hezbollah leader Hassan Nasrallah and vowing "revenge" against Israel's recent offensive in Lebanon.

Israel launched airstrikes on Hezbollah’s headquarters in southern Beirut on Friday, and the Iran-backed militant group confirmed Nasrallah’s death on Saturday. This led to an outpouring of anger, with protesters filling the streets of Tehran’s Palestine Square and other parts of Iran, chanting slogans such as "Down with Israel" and "Revenge."

Iranian state broadcaster Press TV reported that demonstrators, some waving rifles, also held up portraits of Nasrallah while burning Israeli and U.S. flags. Flags of Palestine and Hezbollah were prominently displayed as crowds chanted, "Israel is destroyed, Lebanon is victorious."

The demonstrations followed a call from Iranian officials urging citizens to express their outrage at Israel's "barbaric crimes" in Lebanon and Palestine, according to Iran's state-run IRNA news agency. Similar protests erupted in major cities like Semnan, Qom, Kashan, and Shiraz, with widespread calls for retribution.

In a statement on Saturday, Iran’s Supreme Leader Ayatollah Ali Khamenei urged Muslims to support Hezbollah and Lebanon, stressing the need for "resistance" against Israel. "The future of this region lies in the hands of the resistance forces," Khamenei said, calling for solidarity with Hezbollah in confronting Israel.

The conflict between Israel and Hezbollah has escalated significantly in recent weeks, with both sides suffering heavy casualties. Over 800 people have reportedly died, and tensions remain high as the fighting continues.