A 45-year-old man was stabbed to death allegedly by his nephew over an old enmity in Pirojpur district town on Wednesday night.
The deceased was identified as Ziaul Haque Dipu, son of Jalil Uddin Khan of the Madhyarasta area of the district town.
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AM Nuruzzaman, officer-in-charge of Sadar police station, said Dipu's nephew Mamun and four others stabbed him in front of the Zila Parishad office around 11.30 pm when he was returning home.
A seriously injured Mamun was rushed to a local hospital by passersby, where he was declared dead on arrival.
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Earlier, Mamun had threatened Dipu of dire consequences, the victim's family members told police.
Police have sent the body to the local hospital morgue for an autopsy.