A man and his son were hacked to death on Tuesday over a land dispute in Alokdia area of Chuadanga Sadar upazila.
The deceased were identified as Taiyab Ali, 45, a resident of Alokdia Bazarpara, and his 16-year-old son, Miraj.
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Locals said Taiyab Ali had a long-standing dispute with his cousin Raju.
They locked into an altercation around 11 am when Raju and his cousin Babu attacked Taiyab and Miraj with sharp weapons, leaving Miraj dead on the spot and Taiyab injured.
Taiyab was initially taken to Chuadanga Sadar Hospital.
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As his condition worsened he was transferred to Kushtia Medical College Hospital and later brought back to Sadar Hospital where he was declared dead around 2:30 pm.
Khaledur Rahman, officer-in-charge (OC) of Chuadanga Sadar Police Station, said police conducted a drive and detained Raju and Babu.
Legal proceedings are underway, he said.