Imphal, Dec 21 (ANI): Three persons were killed and four were injured near bus depot in Khuyathong area of Imphal on Sunday morning after an IED blast. Four people are injured and one person's condition is critical. Immediately after the blast, police officials and forensic experts rushed at the spot to investigate the incident. Police said the IED planted by the roadside near Imphal market exploded killing three labourers and injuring four others. The injured have been rushed to the nearby RIMS hospital. All the dead and injured are all non-local migrant labors, including one from Nagaland. Further details are awaited.