At least 30 persons were injured in a clash between two rival groups at Dhuria-Chakulia village under Narail Sadar upazila of the district on Sunday.
Police said the clash erupted in the morning between the rival groups of villagers over establishing supremacy in the area.
The clash continued for one hour, leaving 30 people injured both the groups.
Being informed, police rushed to the spot and brought the situation under control, the sources said.
The injured were admitted to Narail, Jessore and Khulna Medical College Hospital.