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Afghan Koran protests rage for fourth day

24 February 2012 Last updated at 13:05 GMT

Thousands of enraged Afghans have taken to the streets for a fourth day, after US soldiers inadvertently set fire to copies of the Koran.

In the deadliest day of unrest so far, at least 12 people died across the country, as mobs charged at US bases and diplomatic missions.

Orla Guerin reports.