Spain train crash: What we know after two trains crashed with dozens feared dead

Two trains collided south of Madrid on Wednesday morning, with a state-operated Renfe train striking a stationary Iryo train at high speed near the town of Urda, killing at least 69 people. A computer failure in the rail control system halted six trains, and when the control centre restarted them without speed restrictions "under inexplicable circumstances," the Renfe train crashed into the Iryo train ahead of it. The Spanish transport minister acknowledged the control centre's decision to restart the trains without safety measures as a key factor in the collision.