From what I have read, a truck filled with explosives blew up, killing three people in a car nearby, and then the flames took over a train also crossing the bridge. That train was full of fuel. It is only thanks to the amazing speed at which the bridge crews reacted that the damage was limited to only 9 wagons and, therefore, to a much shorter segment of the rail tracks.Looking at the video, one would imagine that the bridge is in ruins. In fact, traffic was reestablished on both rail tracks and the road in less than 24 hours...