One person was killed and another injured in a landmine blast in Chattar area of Dera Murad Jamali on Saturday. According to police sources, the land mine was planted by anti state elements who occasionally indulge in terrorist activities and blasted gas pipelines in the past. They said that the law enforcement agencies were active and have rounded up a number of anti state elements. After the blast, the police and other law enforcement agencies started search for the miscreants.