On 28 October 2026 there was a serious rear-end collision on the Madrid–Seville high-speed line at Urda (Toledo province) between a high-speed train operated by the state railway company Renfe and a stationary train belonging to private operator Iryo. According to information from the government, the operator and several national media outlets, the automatic train control system Linienzugbeeinflussung (LZB) had failed; Adif reported a fault at around 08:30, affecting a stretch of track approximately 63 kilometres long. Within the following minutes, an Iryo train came to a stop on the line, and a Renfe AVE approaching from behind hit its last carriage. Authorities and initial investigation reports refer to dozens of deaths and numerous injuries; official sources gave differing casualty figures in the first few hours, and these are being checked on an ongoing basis.
According to media reports, Iryo said that a complete loss of the LZB connection had prevented its stationary train from being restarted. The company and the head of the investigation also report that the driver tried to get the train moving again, but the vehicle did not respond as expected. Officials also said that several trains had stopped on the affected section shortly before the accident after the computerised LZB control system failed.
Linienzugbeeinflussung is a system that has been in use for decades and is still used in parts of Spain to continuously monitor and automatically limit speed and train movements. EU legislation and the European Union Agency for Railways set transition periods and technical specifications for replacement systems; in 2026, the Commission published additional harmonisation requirements. Technical investigations are now focusing on whether a software or hardware fault, a communication failure between signalling components or an operational error triggered the chain of events.
The investigation is being led by the national accident investigation authority, which has already begun retrieving operating data, securing event recorders and analysing conversations between train staff and the control centre. Many details remain unclear pending a final report; official figures for deaths and injuries must be confirmed by the relevant authorities.
Editor: Mira Cadena (Article created with AI assistance).