Complex sentence: A small group of protesters visited a nearby construction site where the BSF was stationed, but this soon attracted a larger crowd, and violence broke out around 6:30 on the morning of the 18th, amid rumours that a copy of the Koran had been desecrated.
Split into simpler sentences: A small group of protesters visited a nearby construction site where BSF personnel were stationed. Soon a larger crowd gathered and violence broke out around 6:30 in the morning amid rumours that a copy of the Koran had been desecrated.