Incidents of religious hostility are on the rise in all parts of the world except for the Americas, according to an international study by the Pew Research Center.

The proportion of countries with a high or very high level of social hostility involving religion in 2012 was the largest in six years.

The BBC's David Botti looks at the report to find out which areas are worst affected and what form the hostility takes in different parts of the world.

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