At least 10 people were injured in a clash between two rival groups of BNP at Bandhal bazar at Gopalpur village in Kochua upazila on Wednesday night. Of the injured, Masum Billah, 30, Limon Sheikh, 26, Anam Sheikh, 20, and Delwar Sheikh, 40, were admitted to a local clinic. Locals said there was a longstanding dispute between BNP activists Shahiduzzaman Milton and Humayun Kabir over establishing supremacy at the village. They said an altercation ensued between them over a trifling matter at the bazar at about 8pm. Later, both the groups equipped with lethal weapons, sticks and brickbats attacked each other leaving 10 people injured from both sides.