DUMKA: A 45-year-old man allegedly hacked his 13-year-old daughter to death and critically injured his elderly cousin, who later succumbed to injuries, in Jharkhand’s Dumka district, police said on Sunday.A 45-year-old man allegedly killed his 13-year-old daughter and fatally attacked his elderly cousin, who later succumbed to injuries, in Jharkhand’s Dumka district after a domestic dispute turned violent, police said on Sunday.The cousin’s daughter, who tried to intervene, was also injured in the attack and is undergoing treatment.The accused was arrested after the incident, which took place on Saturday night, police said.Preliminary investigations suggest that the man attacked his daughter in a fit of rage over a domestic issue, although the exact motive behind the crime is yet to be established.According to Saraiyahat police station in-charge Rajendra Kumar, the accused’s cousin and the latter’s daughter stepped in to save the girl while she was being assaulted.“When the accused was assaulting his daughter, his cousin and cousin’s daughter intervened to rescue her. The accused then attacked them with bricks, leaving both seriously injured. The cousin later succumbed to his injuries during treatment at a hospital in Deoghar,” Saraiyahat police station’s in-charge Rajendra Kumar told reporters.The cousin’s 22-year-old daughter, who was also injured in the attack, is currently undergoing treatment at a hospital.Police said they are questioning the accused to ascertain the motive behind the killings.The bodies have been sent to Phulo Jhano Medical College and Hospital in Dumka for post-mortem examination, officials said.Police said they are interrogating the accused to ascertain the motive behind the killings.The bodies have been sent to Phulo Jhano Medical College and Hospital in Dumka for post-mortem examination, they said. PTI(With PTI inputs)