RAJANPUR (Online): Police on Thursday arrested three suspects allegedly involved in attack on Khushhal Khan Khattak Express. According to police, the suspects were arrested from the limits of Umerkot and were identified as Ghulam Rasool, Sikandar and Ali Murad. On last Friday, on a tip-off the police found a bomb planted on rail track near Kot Mithan railway station, minutes before Karachi-bound Khushhal Khan Khattak Express was to pass from the track. Later the bomb was defused by bomb disposal squad.