At least 30 people were inured in a clash between two rival groups at Shilaur village under Sadar upazila yesterday. During the clash, they also damaged at least 40 houses there. The clash that lasted for two hours took place between Ladu group and Sadu alias Sadat group of the locality. The injured people were admitted to Brahmanbaria Sadar Hospital. Seriously injured are Abul Kalam Azad, 35, Munna, 18, Manir, 20, Ripon, 28, Murshid, 32, Muhammad Hossain, 18, Uzzal, 20, Tahmina, 30, Anwar Mia, 25, Anwar Hossain, 28. On information, a team of riot police rushed to the spot and fired 15 times from guns and lobbed seven rounds of tear gas shells. Police also arrested seven from the spot.