At least 30 people were injured in a clash between two rival groups at Charsinga village under Narail Sadar upazila yesterday. Police sources said the clash erupted in the morning between the rival groups over a disputed pitch of land in the area, reports BSS. Both the groups equipped with local weapons attacked each other. The injured were sent to Narail Sadar Hospital. Among the injured, three were sent to Jessore Medical College Hospital in critical condition. Being informed, police rushed to the spot and brought the situation under control, said officer-in-charge of Sadar police station Sheikh Motiar Rahman.