Patiala, June 26 (Reporter) Three persons including a father and son were killed and two others injured in a firing incident between two parties over a land dispute in a Patiala village, police said on Wednesday. According to the police, the dispute was over contract farming. There was an armed altercation between the two parties. Both used fire arms. Dilbagh Singh and his son Jassi died in the firing, the police said. Satvinder Singh from the other side also died while his two associates Harpreet Singh and Harjinder Singh were injured. They have been admitted to Rajindra Hospital, the police added. The bodies have been sent for post mortem examination and further investigation was underway...////...