The US today warned Iran on crackdown against people who for the past several days have peacefully protested against the policies of the Iranian government.<br/>'<br/>A total of 21 people died in five days of unrest in Iran that began on December 28 as protests against economic grievances quickly turned against the regime with attacks on government buildings and police stations.<br/>' <br/>State Department Spokesperson Heather Nauert said that the US support these legitimate aspirations of the Iranian people, and call on the government to allow the free exchange of ideas and information. <br/><br/>Nauert said, the US condemns in the strongest possible terms the deaths to date and the arrests of at least one thousand Iranians.<br/>'<br/>