Pakistan, April 9 -- Four air-conditioned parlour coaches of the Karachi-to-Lahore Shalimar Express derailed near Shahdadpur railway station on Wednesday, disrupting train operations on both up and down tracks. No casualties were reported. Railway officials said that coaches numbered 4, 5, 6 and 7 went off the track when the train was being diverted to a loop line due to a faulty up Awami Express on the main track at the station. They added that the Shalimar Express was moving at a very slow speed while entering the loop line, which helped prevent a major accident and saved passengers from injury. However, the derailment caused considerable damage to the coaches and railway track. Following the incident, rail traffic on both tracks was su...