Miguel, a passenger travelling with several colleagues in the rear car of one of the trains, described to Spain’s COPE radio the moment of the accident.“We heard a massive roar, a truly enormous thud that went on for 10 seconds, as if the train were about to derail. Through the right-hand window, we could see a wrecked train — I imagine it must have been the other one,” he said.Spanish Prime Minister Pedro Sanchez said he was “deeply saddened” by the accident. He added that emergency services “are working on-site to assist those affected and ensure their safety, in coordination with all relevant authorities.” “My heartfelt sympathy, solidarity, and support go out to all the victims and their families,” Sanchez wrote on X. Esther Padilla, spokeswoman for the Castilla La Mancha region, told state broadcaster TVE that the two high-speed trains were heading in the same direction from Madrid to Seville when one ran into the tail of the other which had stopped on the line. This caused two of the stationary train’s cars to be knocked off the track, she said. The cause of the crash was not known, she added. She said some 397 people had been travelling on the state-owned Renfe train and 147 people on the private rail company Iryo train. Manuel Galan, the mayor of Urda, a small municipality near the city of Toledo, told Spanish state broadcaster TVE he had been asked by emergency services to prepare a sports hall to accommodate the injured. Renfe said on X that it had established an emergency phoneline to assist families of the victims. Iryo, an Italian-owned company, said in a statement Wednesday that it had “activated its security protocols and is closely working with authorities.”The crash comes 10 months after a deadly collision in January between high-speed trains run by the same operators, Renfe and Iryo, on the same line between Madrid to Seville. That accident left 45 people dead in southern Spain when a train jumped the track and hit an oncoming train. The January crash was the country’s deadliest since a 2013 crash that killed 80 people. Spain has the largest high-speed rail network in Europe for trains moving more than 155 mph, with more than 1,900 miles of track, according to the European Union.This is a developing story, please check back for updates.