Iranian officials hurried to plan a future after the death of Khamenei, who had no designated successor, as some Iranians who had long suffered from political repression celebrated.

European leaders are scrambling to protect citizens and calm tensions after U.S. and Israeli strikes on Iran.

WASHINGTON/JERUSALEM: The United States and Israel launched the most ambitious attack on Iran in decades on Saturday, and Israel said Supreme Leader Ali Khamenei had been killed…