Police arrested an UP member in connection with a clash between two groups of villagers in Derahar village of Nandigram upazila on Monday.
The arrestee was identified as Sadar union member Sogah Hossain, 30.
OC of Nandigram Police Station Kabir Hossain said two groups locked into arguments over offering Eid prayers at Derahar Madrasa Masque at 9 am.
Later, police rushed to the spot and controlled the situation, OC said.
The UP member and another man was arrested over the clash, he said.