At Bitghor village, at least 50 people were injured in a clash between two rival groups in Sharail upazila yesterday.
According to police, the two rival groups of two members one newly elected and one ex-member had long been engaged in rivalry over the supremacy in the area.
These are of Panishwar Uion Parishad one is Mr. Izzat Ali and ex-member Mobarak.
Mamun Mia, a supporter of Izzat, was beaten up by his rivals on Saturday.
As a consequence of the incident, both parties got engaged in fierce fight leaving 50 people injured. They use home made lethal weapons.
Police had to use 16 rounds of tear gas shell to mitigate the situation.