World leaders react cautiously to US and Israeli strikes, death of Iran's Ali Khamenei

World leaders reacted warily to U.S. and Israeli strikes on Iran, following reports of Supreme Leader Ayatollah Ali Khamenei's death. While some nations expressed support, others, including Russia and China, criticized the action. European and Middle Eastern governments largely condemned Iran's retaliation while remaining silent on the initial strikes, urging a return to negotiations.