QUETTA - A terror attempt to derail the Chiltan Express failed as an explosion damaged the railway track near the provincial capital early Saturday morning. Official sources said the planted device exploded when Faisalabad-bound Chiltan Express was reached near Killi Zari in Sariab area. However, the driver managed to apply the brakes and stopped the train immediately. The sources said minor damages occurred to the train but no passenger received any injury. Due to the damaged track, the train service from Quetta remained suspended for some hours; however, the special teams reached the spot and repaired the track.