D.I.Khan- At least five persons including a policeman were killed and two others injured in separate incidents of firing today. Police said that the first incident took place in Yark area where armed men ambushed a group of persons who were returning after attending a wedding. As a result of firing three persons including a cop died on the spot while two others sustained wounds. In Malangi Town Phase II, unidentified armed men barged into a house and opened indiscriminate fire at the residents resulting in death of two persons. The bodies and injured of both incidents were shifted to hospital for medico-legal requirements.