Four persons including three school children were killed in a road accident in Jhalawar district of Rajasthan. The accident took place near Bhalta town in the morning when a school bus slipped from hilly road. This bus was carrying children to a private school of Bhalta from nearby villages. 25 injured children have been admitted in the medical college of Jhalawar and five of them are in a serious condition. Police has arrested the driver of the bus.