Hamas political leader Ismail Haniyeh was killed in a missile strike on his residence in Tehran, an act attributed to Israel though it has not officially commented. The assassination has led to a global outcry, with Hamas denouncing it as a 'grave escalation' and Iran's Supreme Leader Ayatollah Ali Khamenei pledging 'harsh punishment' against Israel. Demonstrations erupted in various Palestinian territories, expressing anger and calling for unity against Israeli occupation. Iran declared three days of mourning, and various nations warned that the incident could escalate the Gaza conflict into a regional war. The assassination has also highlighted the depth of Israeli intelligence operations within Iran, causing significant embarrassment to Iranian security forces.