QUETTAOne bogie and engine of Quetta Express derailed after unidentified persons blew up main Railway track near Machh area, some 65 kilometers away from Quetta late Thursday night. The official sources said, an explosive device planted at the track near Machh exploded when train was just about 200 metres away from the Railwy station. Luckily, nobody was seriously injured in the incident. The sources said that two and half foot portion of the track was destroyed due the blast. Rescue efforts started soon after the incident and relief train had been sent from Quetta. Police has registered a case and started investigations.