Three persons sustained injuries in a blast in Shah Ghazi area in earthquake-hit district Awaran of Balochistan on Thursday. According to police, the explosive material was planted on roadside in Shah Ghazi area and went off when a donkey cart was passing by. The injured were shifted to District Headquarters Hospital for treatment. It is to be mentioned here that rescue teams, security forces have also been attacked in the district several times till now during distribution of relief goods to the earthquake affected people.