A 70-year-old man and his son were crushed under the wheels of a truck on Panchagarh-Tetulia highway at Board Bazar in Sadar upazila on Thursday.
The deceased was identified as Momir Uddin and his son Rezaul Karim, 40 of Mithapukur area in Sadar upazila.
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The accident occurred at noon when the truck hit a motorbike carrying the duo while it was heading towards Tetulia upazila, leaving them injured, said Jahangir Alam Khan, officer-in-charge of Tetulia Police Station.
The injured were taken to a local hospital where doctors declared them dead.