From Vanity Fair:

“Outraged Iranians and security forces clash across the country, sparked by the mysterious death of a 22-year-old woman, Mahsa Amini, after she was detained on Sept. 13 for allegedly violating a strict hijab rule.”

https://www.vanityfair.com/news/2022/09/iran-must-deal-decisively-with-clashes-president-raisi