The deceased was identified as Jumaruddin, 55, of Gonagas village of Tetulia.
Witnesses said stone quarry workers blocked Panchagarh-Banglabandha highway in Bhajanpur area around 10 am demanding withdrawal of ban on the stone extraction.
When police and Rab members tried to obstructthe protesters with tear shells, the protesting workers started throwing brickbats towards them, triggering a clash that left 30 people, including cops, injured.
Superintendent of Panchagarh Police Yusuf Ali said the protesters vandalised a number of vehicles.
Eleven police and Rab members were also injured in the clash but now the situation is under control, he added.
RMO of Panchagarh Modern Sadar Hospital Dr Sirajuddoula Polin said Jamirudding succumbed to his injuries while undergoing treatment at the hospital.
The body was sent to morgue for autopsy, he said.