The accident, the second in less than a year on the same busy rail line, was one of the deadliest in the country’s history.

© Manu Fernandez/Associated Press

An “inexplicable” decision by traffic control operators sent a train on its way toward another stopped miles in front of it, the minister said.

© Violeta Santos Moura/Reuters

Fernando Seco, 62, said he and others moved at least a dozen wounded passengers from the crash site, using parts of the wreckage as makeshift stretchers.

© Ana Beltran/Reuters

An “inexplicable” decision by traffic control operators sent a train on its way toward another stopped miles in front of it, the minister said.

© Violeta Santos Moura/Reuters

One train rear-ended another, sending two carriages down an embankment.