Iran’s top authority Supreme Leader Ayatollah Ali Khamenei has replaced the chief commander of the elite Revolutionary Guards, state TV reported on Sunday, days after the United States designated the group a foreign terrorist organization. The TV station did not give a reason for the change when it announced the appointment of Brigadier General Hossein Salami. “The Supreme Leader has appointed Salami as the new commander-in-chief of the Guards, who will replace Mohammad Ali Jafari,” it said.