A widow was killed by unknown criminals in Chirirbandar upazila on Wednesday night, police said. The dead is Shamiyara Begum, 48, wife of late Abdul Latif of Ichhamati village in the upazila. Police quoted family members as saying that criminals entered her house at around 8:30pm when she was staying alone and strangled her. On return home, her son Md Manik found his mother dead and lying on the floor of her room. Being informed, police rushed to the spot and sent the body to Dinajpur Medical College and Hospital for autopsy. A murder case was filed with Chirirbandar Police Station accusing 10 unidentified people. Police suspect that the woman might have been killed following a land dispute with neighbours.