Acting Director of the Saudi Railways Organization Eng. Hamad bin Abdulrahman Al-Abdulqader said that the train's trips are resumed since yesterday evening after a train carrying on-board 332 passengers en route from Dammam to Riyadh derailed yesterday morning, leading to injuries of some passengers and its crew. In a press conference, Eng. Al-Abdulqader pointed out that an investigation has been opened to define the causes of the accident. He stressed that the results of the investigation will be released.