Dibrugarh, Nov 24 (ANI): At least one person was killed and 16 others were injured after an explosion took place in Assam on Sunday evening. The blast took place in Rajgarh area of Dibrugarh district. The cause of the blast has not been ascertained so far. The injured were admitted in a local hospital where one person was declared brought dead. Police has launched a massive manhunt to nab the culprits.