New Delhi, July 22 (ANI): Delhi police on Tuesday confirmed the arrest of three men accused of killing a Manipuri youth who was beaten to death by a group of unidentified men. 30-year-old Shaloni was beaten to death in the national capital on Sunday, an incident which again raised concerns over security of people from northeastern states. He was rushed to a hospital where he was declared dead on arrival. On Tuesday, Delhi Police Commissioner BS Bassi assured stringent action in connection with the case. Expressing concern over the incident, Union Minister of State for Home Kiren Rijiju, said police has intensified search for the other two accused involved in the killing.