One person killed his younger brother and injured another in a dispute over a piece of land at Hasbaria village under Lalpur upazila on Saturday evening. The dead was identified as Abdul Khaleque,18, son of Abul Fazal of Hasbaria village. Police and villagers said, three brothers Year Ali, Zia and Khaleque locked in a quarrel over a parental land. At one stage elder brother year Ali hacked to death his younger brother Khaleque. Another brother Zia who tried to resist him was severely stabbed by sharp weapon. A case was filed with Lalpur police station in this connection.