In Bihar, three persons have been killed and seven police personnel injured in a road accident when a police vehicle belonging to a convoy of Chief Minister Nitish Kumar rammed into an autorickshaw in Jamui. The incident took place on the Jamui-Nawada highway. The victims belonged to Chandradeep village and were returning home from market last evening. Those injured have been admitted to Jamui district hospital.The Chief Minister was not present at the time of incident as he left for Nawada immediately after the rally.