I don't like quoting Wiki but this will do for now. Anytime Moslems rub up against other cultures there's violence and it's always Moslem's fault. Myanmar is no different but this time the Buddhists fought back. How it (briefly) got started in Myanmar.
The violence and long lasting tension was reignited on the 28th of May 2012. It was reported that daughter of U Hla Tin, of Thabyechaung Village named Ma Thida Htwe aged 27 was raped then killed by three Muslim men. These men were later arrested. On March 20, 2013, at about 9AM U Khin Maung Win and Daw Aye Aye Naing came to the Muslim-owned New Weint Sein gold shop to sell their gold comb. The Bangali-Muslim shop-owner and her elder sister slapped the Rakhine Buddhist couple. The Rohingya Muslim husband of the shop-owner Htun Htun Oo (a) Ar-shid and his employee Nyi Nyi came in and started hitting U Khin Maung Win with timber 2x4 pieces. They both were yelling out that the Rakhine Buddhist couple and their children were trying to rob their gold shop. As their Muslim relatives from other Rohingya gold shops nearby joined the attack the bystanders started shouting at them to stop such and then called the police.
On the same day, a Buddhist monk from Hanzar village of One-dwin township had come into the Meiktila town as a passenger on a motorbike and they were unknowingly riding through the Da-hart-tan Muslim ward the biggest Muslim quarters in Meiktila. Already-agitated Muslims saw him and chased the motorbike and managed to strike him from behind with a sword and he fell to the ground from his pillion-riding position on the motorbike. He had a long deep gash on back of his head just above his left ear. Muslim mobs forcefully took off his robe and dragged the direly-wounded Buddhist monk into the nearby Myo-ma mosque. Once inside the mosque they poured acid and petrol over the wounded Buddhist monk and burned him alive. Burmese-Buddhist workers, Selayang in Malaysia were killed by Bengali-Muslims On May 30, 2013.