Women have been at the forefront of escalating protests in Iran sparked by the death in custody of a woman detained for breaking hijab laws.
Crowds cheered when women burned their hijabs on a bonfire in Sari on Tuesday, as the unrest continued for a fifth night and spread to more cities.
Activists said two male protesters were shot dead by security forces in Urmia and Piranshahr, in the north-west and a police assistant was also reportedly killed in Shiraz, in the south