Iran has been rocked by the biggest protests in years following the death of Masha Amini on 16 September.
The country's morality police -- tasked with enforcing strict codes around dress and behaviour -- had arrested the 22-year-old for not wearing her hijab correctly and sporting skinny jeans.
Her family say Amini was beaten and her head struck several times. The government and police have denied the accusations.
Iran's Forensic Organisation said her death was due to an "underlying disease" and not as a cause of blows to the head or vital organs.
Demonstrators reject this official line and protests are now in their fourth week, showing no sign of abating.
Iranians of all ages, ethnicities and genders have joined in the demonstrations but it is mainly younger generations that have taken to the streets.
“Women started this wave of protest,” says Ramyar Hassani, spokesman for the Hengaw Organisation for Human Rights.
“But everyone else joined. Women and men are shoulder-to-shoulder. All of Iran is united.”
"For the first time in the history of Iran since the Islamic Revolution, there is this unique unity between the ethnicities. Everyone is chanting the same slogan. Their demand is the same."
Nearly every type of “peaceful, non-violent” protest has been used in Iran, says Hassani.
In large street demonstrations, which have been happening in all of Iran's major cities and many small towns, women have burnt their hijabs, often dancing at the same time, while others have cut off their hair. Strikes have been reported in schools, universities and the country’s vital oil sector.
Violent clashes have at times broken out, with protestors torching buildings of the security forces.
The demonstrations have also spread to Europe. Women from
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