QUETTA - At least five people were killed in three separate incidents of firing in Khuzdar, Mastung and Hub areas of Balochistan on Monday.According to sources, unidentified armed men opened indiscriminate firing on a couple in Drengar area of Mastung district and fled from the scene. As a result, Allah Bakhsh and his wife sustained serious wounds and succumbed to their injuries. In another incident, two people were gunned down and another sustained injuries in Khuzdar. Sources said unknown assailants riding a motorcycle opened firing in main Khuzdar City. Resultantly, two people were killed and a six-year-old girl was injured.Meanwhile, a man was gunned down in Hub, the industrial town of Balochistan.Report reaching here said that the man identified as Aslam resident of Multan was gunned down by unknown armed men.