[rr2841]

Yes, that was not accurate and you're correct, it's still not clear what caused the first train to derail to begin with.

The way I looked at it is that the first train derailing wasn't a big issue, I don't think it caused any injuries. What was really catastrophic was the impact with the second train.

[Rygian]

It is now confirmed that the cause of the accident was the welding on rail track number 23117.

https://www.abc.es/espana/andalucia/cordoba/via-l10717-salto...