What went wrong? Questions and theories about what caused the metro tragedy in Mexico City
A lack of maintenance, design errors, poorly executed construction and negligence all dominate the discussion after the accident this week. EL PAÃS analyzes the key factors
Experts believe that the accident stemmed from a break in the joint of the horizontal girders.
Raised bridge
Tláhuac Avenue
The structure collapsed under the weight of the train. The girders opened like a book and trapped the metro vehicle.
Experts believe that the accident stemmed from a break in the joint of the horizontal girders.
Raised bridge
Accidente Línea 12: ¿Qué salió mal? Las dudas e hipótesis detrás de la tragedia en el metro de Ciudad de México elpais.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from elpais.com Daily Mail and Mail on Sunday newspapers.