The Spain train crash on Wednesday morning, October 28, near Urda in the province of Toledo, killed at least 68 people and left dozens more injured, according to the regional government of Castilla-La Mancha. A Renfe high-speed train ran into the rear of a stationary Iryo service on the Madrid-Seville line, derailing carriages and sending wreckage down an embankment. Prime Minister Pedro Sánchez visited the site and declared three days of national mourning, while rescue teams spent the day searching twisted metal for survivors and bodies.

The Spain train crash happened in open country between Urda and Los Yébenes, south of the capital, where local people ran to help before emergency crews arrived. The two trains were travelling in the same direction, from Madrid toward Seville, with 544 passengers between them, according to figures reported by the BBC and regional officials. The Renfe service carried 397 passengers. The Iryo service carried 147. A British tourist pulled from the Renfe train told the Associated Press that carriages ahead of him had simply disintegrated in the impact.

A signal failure, then an order

Transport Minister Óscar Puente told reporters that a computer communications failure knocked out the line safety system across a 63-kilometre stretch at around half past eight in the morning, stopping six trains where they stood. Control staff at Adif, the rail infrastructure manager, then cleared the Renfe train to resume at normal speed even though a stop signal was still active and the track ahead was occupied, according to the minister. Puente called that decision inexplicable and a breach of protocol, and said the train crews were not to blame. The sequence that led to the Spain train crash ended minutes later, when the Renfe train struck the stationary Iryo service from behind.

The official account of the Spain train crash is already under challenge. Iryo told El Mundo that its driver received no order to resume movement, a version that raises questions about whether the Iryo train was stationary or moving when it was struck and about who told it to stop. The Guardia Civil has questioned the Adif traffic controller on duty, according to RTVE, and the rail accident investigation authority has opened a formal inquiry. No final official finding on the cause has been published, and the government account remains a first hypothesis rather than a conclusion.

The same line, the same operators, nine months apart

That record explains why the Spain train crash has drawn attention beyond the corridor itself. The disaster is the second fatal high-speed rail crash on the Madrid-Seville corridor this year. In January, a crash at Adamuz in Córdoba province killed 46 people, involving trains run by the same two companies. Until this year, no fatal crash had occurred on Spain's dedicated high-speed lines since the network opened in 1992, a record that had been a source of national pride, according to the Associated Press. The deadliest rail disaster in recent Spanish history remains the Santiago de Compostela derailment in 2013, which killed 79 people. Sánchez called it unacceptable for Spain to suffer two high-speed rail accidents in the same year.

The human cost of the Spain train crash is still being counted. Former employment minister Fátima Báñez was among the dead, travelling in the last carriage of the Iryo train, according to Spanish media reports. Regional officials said 58 people were receiving hospital treatment, with 15 in serious condition, while more than 100 others received medical attention. The sports pavilion in Urda became a triage centre within hours, and the Madrid blood transfusion centre issued an urgent donation appeal. High-speed services between Madrid and Andalusia were suspended while emergency teams worked at the site.

For the Spain train crash, the questions now facing investigators are specific. They need to establish who gave the order, why a safety system failure left a single human decision standing between two packed trains and disaster, and whether warnings about maintenance and signalling on the corridor were acted on. Union leaders had warned for months that signalling and maintenance risks were being neglected, according to reports of their statements. The inquiry by the rail accident investigation authority is where those answers have to come from, and families waiting at Atocha station in Madrid deserve them before the line reopens.

Sources: Associated Press report on the crash and further reporting on the casualties and the official account.