The Saudi Railways Organization (SRO), the authority responsible for KSA’ train network, has revealed that broken communication and control cables were one of the causes of the crash last week.

The investigation into the incident was instigated shortly after the train carrying 332 passengers between Riyadh and Dammam derailed injuring 35 of those onboard.

“Some unidentified people stole the optical fiber cables that link the special control system of the railway tracks between Dammam and Riyadh, causing the damage to the system that resulted in the failure of the switching devices to respond to commands,” said Al-Eqtisadiyah daily, quoted an anonymous source.

President of the SRO Abdul Aziz Al-Hoqail canceled his vacation in the United States to supervise the official investigations, as Hamed Al-Abdul Qader, acting SRO president, reassured the media that the SRO also meted out severe punishments to negligent drivers who had caused accidents in the past.