The Minister of Transportation, Oscar Fuente, points to the control center of Edore as the source of the Toledo accident. What happened? A technician authorized the Ranfa train to return to normal operation despite the failure of the security system. The train was forced to travel at 'sight travel' rather than 200km/h when the LZB protection system failed. A computer malfunction brought down the LZB system, but the control center ordered the AVE to resume travel.