Shortage of running engines and fuel again disturbed the train schedule on Thursday, and delayed trains by four hours. According to details, Pakistan Express coming from Karachi to Rawalpindi was stuck at the Multan Railway station for four hours due to shortage of fuel. Similarly, Tezgam Express running on the same route was delayed for two and a half hours. Zakariya Express en route to Multan from Karachi was delayed by three hours.