The Collision
The accident involved a service by state operator Renfe, which was traveling from Madrid to Seville, and a stationary train belonging to the private Spanish company Iryo. According to Iryo, its train was "struck from behind" by the Renfe train, which was carrying 397 passengers. The force of the impact caused several carriages to fall down an embankment.
Transport Minister Oscar Puente stated that an automatic control system went down on 69 kilometres (43 miles) of track, causing all trains in that area to stop. Puente said the control centre decided to "resume traffic in circumstances that, from our point of view, are inexplicable," noting that the Renfe train traveled 25 kilometres before striking the Iryo train. He added that the control centre "had more than enough time to verify the error, and they did not fix it."