According to reports, the accident took place on national highway-15 after a speeding truck ran over several people on the roadside.
Police said that the people had come out for morning walk when they were run over by the speeding truck.
Police informed that the truck, bearing registration numbers AS 11 BC 1555, lost control and ran over the pedestrians.
Meanwhile, two people were killed on the spot after the accident, police said. They have been identified as Jintu Haque, aged 16 years and Indadul Haque, aged 17 years.
Moreover, seven others were left injured in the incident. They were immediately rushed to a nearby hospital, said police.
Two women were among those injured in the incident. They have been identified as Joymoti Baruah and Sangita Devi Sharma.
The remaining persons who sustained injuries were identified as Rekib Ali, Ezazul Haque and Sahil Akhtar.
Police said that an investigation into the incident has been initiated and the remains of the deceased have been sent for post-mortem.
However, three more succumbed to their injuries while receiving treatment at the hospital.
They are Rekib Ali, Joymoti Baruah and Sangita Devi Sharma. While Ali was aged 15 years, Baruah was 70 and Sharma was 46 years old.