New Delhi, Oct 13 (ANI): A police constable was killed and another seriously injured after they were shot at by three unidentified people, near a police station at Rohini's Vijay Vihar area in early hours on Monday. According to Deputy Commissioner of Police (DCP) Vikramjeet Singh, the policemen tried to stop three men who were travelling in an autorickshaw, following which the men opened fire at the constables, hitting one in the chest and the other in the back. The constable who was hit in the chest died. Meanwhile, the three attackers managed to flee from the spot. The constable with serious injury is undergoing treatment in a hospital. The police are investigating the matter. Moreover, the Delhi Police's crime branch and special cell have been roped in to probe the case