The unrest – which has killed more than 250 people and left 140,000 others displaced – began last year in the western state of Rakhine, where nationalist Buddhists accuse the Rohingya Muslim community of illegally entering the country and encroaching on their land. The violence, on a smaller scale but still deadly, spread earlier this year to other parts of the country, fuelling deep-seeded prejudices against the Islamic minority and threatening Burma's fragile transition to democracy.