Spanish authorities say at least 68 people have been killed and many injured after two trains collided in southern Madrid.
In this incident, a train leaving Madrid for Seville collided with a train that had apparently stopped. At least two wagons fell from the slope next to the railway line.
In January, a train derailment on the same route killed 46 people and sparked a debate about train safety in Spain.
According to reports, the Spanish government believes that human error related to the train's signaling system is one of the possible causes of today's accident.
Pedro Sánchez, Prime Minister of Spain, expressed sadness over this incident.
Local authorities say that more than 500 passengers were on the trains.
Emiliano García Page, head of the Castilla-La Mancha region, told Spanish radio station Exit that most of the fatalities were on the high-speed train and that the number of fatalities on the Erio train was "less." He added: "Obviously we expect more bodies to be found, because we still haven't been able to access the interior parts of the cars."