Rajibul said three others died on the way to the hospital.
The victims have been identified as autorickshaw driver Amjad, 50, and passengers Nasir Chowdhary, 23, Sirajul Islam, 60, Shahnaz, 45, and Shahnoor Begum, 38.
Rajibul said the bodies of the victims have been recovered and sent to the Modern General Hospital and Diagnostic Center in Joypurhat.