Spain observes third day of mourning as unions demand urgent action following deadly train collision

A deadly train collision occurred near Urda, in Toledo, earlier this week. At least 69 people lost their lives. Spain is observing three days of national mourning because the crash caused extensive loss of life and affected communities across the country. A memorial Mass was held at San Juan Bautista church near the site.

The church was full, and dozens more people listened outside. Relatives faced continuing anguish as authorities identified bodies. Emergency services collected 31 bags of partial remains, making the process more difficult. Officials warned that the death toll could rise.

The crash has also shaken confidence in Spain’s rail network. It was the country’s second major rail disaster this year and one of Europe’s deadliest rail accidents this century. Prime Minister Pedro Sánchez promised solutions, while train drivers and opposition politicians demanded stronger safety measures.

The collision killed at least 69 people, according to the article. Another 39 injured people remained in hospitals in Castilla-La Mancha. Authorities were still identifying victims, with 67 missing-person reports active, including 14 involving foreign nationals. Officials warned that more deaths could be confirmed.

Identification was difficult because emergency services recovered 31 bags of partial remains. The missing reports involved citizens from several countries, including the United States, Canada, Australia, France, Japan, Mexico, Argentina, Venezuela, Tunisia and the Czech Republic. A Portuguese railway worker was also among the dead.

The crash was Spain’s second rail disaster this year. A January collision in Adamuz, Córdoba, killed 46 people in Andalusia. The Urda crash was also described as one of Europe’s deadliest rail accidents this century, intensifying pressure for safety reforms.

LZB is an automatic train-protection system used to monitor a train’s movement and enforce safe operating limits. ERTMS is a broader European system for managing train movements and protection. Both are intended to reduce human error by providing information, warnings and, where necessary, automatic intervention.

Their key safety role is maintaining separation. The railway system tracks where trains are allowed to travel and whether they are exceeding permitted speeds. If a train approaches an unsafe limit, protection equipment can warn the driver or apply braking. The exact equipment and operating rules vary by route.

The article reports that LZB stopped functioning before the Urda collision. Semaf wants regulations clarified so trains do not resume normal operations when two could enter the same track section. The investigation has not established whether the failure caused the crash.

The known technical fact is narrow but important: preliminary information says the LZB system stopped functioning at 8:31 a.m. on Wednesday, before the trains collided. Because LZB is part of the railway’s protection arrangements, its failure has raised questions about how trains were allowed to operate afterward.

The Independent Authority for the Technical Investigation of Accidents and Incidents, known as AITAT, is providing the preliminary information. It has not concluded that the LZB problem directly caused the collision. That distinction matters because investigators must establish the full chain of events rather than treat a system failure as proof of responsibility.

Semaf is calling for urgent changes to LZB and ERTMS operating rules. The union wants trains prevented from returning to normal operations if two trains might occupy the same section. The government has promised measures to reduce technical risks, but has not specified them.

The immediate consequence could be disruption to Renfe services. Train drivers’ union Semaf has called strikes for November 10 and 12, demanding structural rail-safety measures. Earlier stoppages were already planned, but the collision has made the dispute more urgent. Service changes could affect passengers while authorities review operating rules.

Passenger confidence has already suffered. Sánchez said trust in the high-speed network was “shattered.” The transport minister, Óscar Puente, ruled out resigning and promised measures to reduce technical risks and restore confidence, though he gave no details. Drivers say previous safety concerns and agreed improvements have faced delays.

Politically, the crash adds pressure on Sánchez ahead of elections in November. Opposition leader Alberto Núñez Feijóo accused the government of failing to replace an obsolete security system. The outcome may depend on the investigation, safety reforms, strike impact and whether confidence returns.

The safest basic response is to stop normal train movements until the track is known to be clear. Dispatchers can require explicit permission before a train enters a section. They can also impose lower speeds, use radio communication and record each movement. These measures replace automatic enforcement with controlled human decisions.

A railway may use an occupancy check, such as signals, track circuits or axle counters, to confirm whether a section contains a train. Staff can protect the affected area with stop signals or written instructions. A qualified pilot or other railway employee may accompany a train under restricted rules, depending on local procedures.

Semaf’s concern is that trains should not resume normal operation if two trains could reach the same section. The article does not identify Spain’s exact backup procedure. It reports that Semaf wants the regulations clarified and that the government plans measures to reduce technical risks.

Railway signaling manages traffic by dividing a route into sections, often called blocks. A train is normally permitted to occupy a section only when the system shows that it is clear or safely assigned. This creates space between trains and prevents conflicting movements. Signals communicate whether a train may proceed, slow down or stop.

Track circuits and axle counters can detect whether a section is occupied. Control systems use that information to set signals and prevent routes from crossing or following too closely. Automatic protection can monitor speed and braking, helping enforce the movement authority given to the train. These layers reduce reliance on a driver seeing danger in time.

The article focuses on LZB and ERTMS, not Spain’s complete signaling design. It says LZB failed before the collision and that Semaf wants clearer failure rules. The central safety question is how to preserve separation when automatic protection is unavailable.