A 60-year-old woman was killed while her three kin sustained bullet injuries when a group of armed assailants fired at them in Batala's Harchowal village, police said on Wednesday.
Jasbir Kaur died on the spot while Partap Singh, his wife Narinder Kaur and brother Niranjan Singh were admitted to an Amritsar hospital in a critical condition, they said.
Complainant Amarjit Singh said nearly 15 armed assailants attacked their house around 10 pm on Tuesday and fired several rounds for at least half an hour before fleeing from the scene, police said.
SP Jasbir Singh Rai said as per preliminary investigation, the attack was the result of an old enmity between their children, Gursharan Singh and Sahil, both students of Class 10.
Sahil's family allegedly attacked the Gurcharan's kin with arms and other weapons, police said.
Police have booked Lakhwinder singh, alias Lakha; Malkiat Singh; Amritpal Singh; Sahil and six unidentified people on the charge of murder.