Police are investigating whether ringleaders had out outside help, but as they do, Sri Lanka's Muslim community count the cost and fear more violence.
Police also ordered a curfew across much of central Sri Lanka for a third straight day, trying to calm the situation.
The Sri Lankan government has imposed a state of emergency after anti-Muslim riots have spread in parts of the country. Tensions have been brewing for months, so why has the government been slow to act?
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