Unprecedented protests erupted across Iran after Mahsa Amini, 22, was taken into custody by Iran’s morality officers.
Social media has seen videos of young protestors, often women, who demonstrate in defiance and face violent responses from police.
Iran’s government claims that protesters pose a danger and blames Israel and the US for causing the unrest.
Rana Rahimpour, BBC’s Rana Rahimpour examines why this movement is so different from any Iran has seen before.
Research by BBC Persian, and BBC Monitoring
Video by Olivia Lace Evans and Soraya Aer
Additional reporting by Taraneh Stone, Shayan Sardarizadeh, Daniele Palumbo
Data analysis by Sarah Habershon
Graphic design created by Jacqueline Galvin