The deceased were identified as Arun Kumar, an engineer of the Railways, who was on way to Islampur railway station with his nephew Binod Kumar on a motorcycle, when their motorcycle collided with a speeding truck at Kalisthan resulting in death of the two, Deputy Superintendent of Police Hilsa Parbinder Bharti said.
Both uncle and nephew died on the spot, the DSP said.
Angry over the incident, villagers blocked the road for some time.
