QUETTA    -   At least four people were injured in blast near Sariab area of Quetta on Saturday evening.  According to police sources, the blast occurred near Sariab area. As a result, four people received injuries due to it.  The injured were rushed to civil hospital for medical aid and hey identified as Khair Muhammad, Gul Khan, Sadar-ud-din and Zain-ud-din.  Police reached the site and cordoned off the entire area and started investigation regarding nature of explosion.