Ayatollah Ali Khamenei has spent almost four decades as Shi'ite Iran's supreme leader building a regional power to rival the Sunni states across the Gulf and implacably hostile to the U.S. and Israel - while crushing repeated unrest at home.

Khamenei has seen his main military and security advisers killed by Israeli air strikes, leaving major holes in his inner circle and raising the risk of strategic errors, according to five people fam...

At least two Iranian state-media employees were killed by the Israeli strike on buildings in Tehran belonging to the Islamic Republic of Iran Broadcasting, the country’s state-owned media company repo...

Israel's air campaign on the Iranian capital appeared to broaden on the fourth day of an intensifying conflict after it issued warnings on Monday for about 300,000 people in Tehran to evacuate ahead o...