Kurdish struggle critical linchpin of Iran protests, says BBC World Affairs correspondent Jiyar Gol

Protests in Iran are continuing despite a harsh crackdown by security forces. Human rights groups say that at least 201 people have died in the violence that was triggered by the death in custody of a Kurdish woman, Mahsa Amini. The 22-year-old was detained by the morality police for supposedly breaking rules on mandatory Islamic-style covering.

BBC World Affairs correspondent Jiyar Gol says much of the violence is concentrated in the Kurdish heavy northwest provinces, where long-running grievances over political repression and poor economic conditions mesh with the regime's suppression of Kurdish identity.