Details of the Collision
The collision involved a service operated by the state-owned company Renfe and a stationary train belonging to the Spanish company Iryo. Both trains were traveling in the same direction on the Madrid–Seville railway line. Independent investigators stated that the Renfe train was moving at a speed between 100 and 125 mph when it struck the rear of the Iryo train, causing two cars to derail.
According to reports from Spanish authorities, an automatic safety system had failed, halting all trains on a 63km stretch of track. However, a control center authorized the Renfe service to resume its journey while the Iryo train remained stationary on the tracks.