A man, who was injured in a clash between two rival groups at Dighulia village in Kotalipara upazila on National Mourning Day, died at Gopalganj General Hospital on Friday morning. The dead is Atiar Fakir, 50, of the village. There was a longstanding conflict between Kibria Molla and Atiar Rahman over establishing supremacy at the village. Police said an altercation took place between the supporters of the two over distributing 'tabarak' (milad's food) at a local mosque on the night of August 15. Later, both groups equipped with lethal weapons attacked each other, leaving Atiar critically injured. He was rushed to the upazila health complex and then shifted to the hospital where he succumbed to his injuries.