An activist of ruling Awami League was killed and three others were injured in an attack at Kalinagar on Kalia-Gopalganj road in Kalia upazila of Narail on Tuesday night.
The deceased was identified as Quaiyum Shikdar, 45, a member of Kalabaria union unit Awami League and son of Hasmat Ali Shikdar of Bilafar village in the upazila.
Quoting locals, police said Sabur Fakir Group and Quaiyum Shikdar had been at loggerheads over establishing supremacy in the area.
A group of miscreants attacked Quaiyum when he was returning home with three others around 8:30pm and stabbed them indiscriminately with sharp weapons, leaving them injured.
Later, they were taken to a local hospital where doctors declared Quaiyum dead, said Roksana Khatun, officer-in-charge of Naragati Police Station.