A regular morning turned into a day of nightmares for Spanish commuters on 11 March 2004.
In the space of minutes, 10 bombs detonated on trains around Madrid, killing nearly 200 people and injuring more than 1,800.
With a general election three days away, the political fall-out was dramatic.
In 2014, two politicians from opposite sides told Mike Lanchin about that terrible day – and what happened next.
(Photo: The wreckage of a commuter train. Credit: Bruno Vincent/Getty Images)