Kathua, Sept 17 (ANI): One person was killed and three others injured when members of truckers union resorted to firing following a clash between them in Kathua district of Jammu and Kashmir. Reportedly, the clash, between two groups of the union, took place during the election of the union president. The deceased has been identified as Kuldeep Kumar, a government employee working for excise and taxation department. He was killed after a bullet hit his head. The injured were referred to Jammu hospital. Following the incident, people, mostly belonging to another group of truckers union, thronged Jammu-Pathankot National Highway in Kathua and demonstrated.