Amini's death a 'bitter incident' - Iran's Khamenei

STORY: Security forces, including police and the volunteer Basij militia, have been leading a crackdown on the protests, with thousands arrested and hundreds injured, according to rights groups, which put the death toll at over 130.

Iranian authorities have reported many members of the security forces killed during the unrest, which has spiraled into the biggest show of opposition to Iran's authorities in years, with many calling for the end of more than four decades of Islamic clerical rule.

Khamenei accused the United States and Israel - the Islamic Republic's arch-adversaries - of orchestrating the disturbances.