Eight cars of a Lahore bound train derailed in southern Pakistan early Sunday, killing at least one passenger and injuring 40 others, officials said. The accident took place between the Rohri and Sangi stations in southern Sindh province and caused a temporary suspension of railway traffic in both directions, said Kamran Lashari, a railway official. It wasn’t immediately clear what caused the derailment. Train accidents are common in Pakistan, where successive governments have paid little attention to improving the poorly maintained signal system and aging tracks. Lashari said eight cars of the 18-car train that departed from Karachi for the eastern city of Lahore derailed and six fell into a shallow ditch. Rescue official Muhammad Arshad said darkness and the remote location of the derailment hampered rescue efforts. He said the body of the woman who died and 40 injured passengers were taken to hospitals in nearby towns. It wasn’t immediately clear how many passengers were on the train. Railway Minister Azam Sawati told a local television station that the accident was being investigated and the government would provide financial compensation to the heirs of deceased woman and all the injured.