Spain train crash: drivers had raised concerns over track before collision that killed 39 –as it happened

Reuters obtains letter from union last year raising worries over potholes and power lines amid investigations into cause of devastating crash

King Felipe of Spain has expressed his concern about the terrible accident" in which at least 39 people have been killed.

Speaking from Greece, the monarch was quoted as having told the media:

We have been in contact with Sanchez and Juanma Moreno to learn the details. As soon as we finish, we will return as soon as possible. I understand the anguish of the families of the victims and the injured.

We know that many residents of Adamuz assisted the victims immediately, and we express our gratitude to them for that.