The Iryo train alerted the control center that it was stopped due to a failure of the LZB track signaling system before being struck by the AVE

The second major train accident in Spain's high-speed system within nine months raises concerns about safety protocols. Initial investigations into the Urda incident suggest coordination failures in traffic management led to a Renfe AVE train colliding with a stationary Iryo train. Both trains received conflicting information, resulting in one traveling at over 100 km/h while the other was stopped. The LZB signaling system, which should ensure communication along the tracks, failed to alert operators to reduce speed. The collision caused significant damage to both trains, with passengers on board.