Militants blew up a railway track between Sariab and Spezand, suspending train service between Quetta and other parts of the country, Railways officials told APP on Monday. The explosives were strapped to the railway track near Spezand. The explosion damaged about two feet of the track. A Railways technical team has been sent to the area for repair work, the officials said. Dasht police have registered a case against unknown saboteurs.