Protesters defy calls for calm in Iran; death toll rises to 20

TEHRAN — Clashes overnight between protesters and security forces in Iran killed nine people, state television reported Tuesday, including some rioters who tried to storm a police station to steal weapons.

The demonstrations, the largest to strike Iran since its disputed 2009 presidential election, have seen six days of unrest across the country and a death toll of at least 20.

The protests began Thursday in Mashhad over Iran’s weak economy and a jump in food prices and have expanded to several cities, with some protesters chanting against the government and the supreme leader, Ayatollah Ali Khamenei. Hundreds of people have been arrested.