by Saleem Shahid in Dawn, June 28th, 2023QUETTA: A group of gunmen attacked the convoy of the Harnai deputy commissioner and torched coal-laden trucks in Ziarat on Tuesday. According to officials, the attackers blocked the Harnai-Ziarat road and intercepted the trucks, carrying coal from the Sharag coal field to Punjab. They looted cash from the drivers and torched the trucks. The attackers also opened fire on the convoy of the Harnai deputy commissioner Arif Zarkoon…