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Police have made a show of force after days of violence rocked Tehran

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Students showed off wounds sustained during violence after Islamic vigilantes stormed university halls...

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...smashing doors of rooms and attacking anyone inside

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Access has been restricted around Tehran university campus to stop people gathering there

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Despite the dangers, students have remained defiant, although some were afraid to show their faces

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Student groups say there will be protests every day for the next three weeks

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...but they face hardline pro-establishment vigilantes wielding clubs and chains