A man along with his son and grandson were killed in a road accident in Deborpara area of Natore's Lalpur upazila on Friday afternoon.
The deceased have been identified as Shahidul Islam, 60, his son Sohag, 27 and Sohag's son Evan, 5.
They were resident of Biropara village of the upazila, said Monowarul Islam, officer-in-charge (OC) of Lalpur police station.
The tragic road accident took place at around 3:30pm when a bus “GM Travels” crashed into a motorcycle the trio was riding, leaving Sohag and Evan dead on the spot.
Shahidul was critically injured, and died while locals rushed him to Lalpur Upazila Health Complex.
Police managed to seize the bus, but the driver and helper managed to flee, the police officer added.
The bodies of the victims have been handed over to the family.