Ayatollah Ali Khamenei, the country's supreme leader, told Iranians to "disappoint the enemy" by voting in Friday's parliamentary election, which comes during one of the most testing periods for Iran since the ouster of the pro-US shah in 1979.
Protesters, with students at the forefront, have staged daily rallies in the country after the government admitted they shot down a Ukrainian passenger plane that killed all 176 aboard. Some protests have been met with a violent crackdown.