TEHRAN: Iran's Revolutionary Guards warned on Saturday that safeguarding security was a "red line" and the military vowed to protect public property, as the clerical establishment stepped up efforts to quell the most widespread protests in years.

Iran's elite IRGC - which operates separately from army - also says safeguarding country's security is a 'red line'.

TEHRAN: Iran's Revolutionary Guards warned on Saturday that safeguarding security was a "red line" and the military vowed to protect public property, as the clerical establishment…