Iran's protests have shined a new light on the seemingly limitless powers of its Supreme Leader

Iran's supreme leader said yesterday there would be neither war nor negotiations with the United States, and that the country's problems were the result of government mismanagement more than renewed sanctions.

Iran's supreme leader called on Muslim nations to unite against the United States, saying Tehran would never yield to "bullying," state television reports.

Iran’s Supreme Leader accuses enemies of the Islamic Republic of stirring unrest, as anti-government demonstrations that began last week continues.

Iran's supreme leader blames the country's "enemies" for days of unrest that have seen 21 killed and hundreds arrested in the biggest test for the Islamic regime in years.