At least 39 people have died and dozens more have been injured after two high-speed trains collided in southern Spain, the country's Civil Guard has said.
The incident near the city of Córdoba has been described by local officials as Spain's worst rail crash in more than a decade.
Prime Minister Pedro Sánchez is expected to visit the scene later on Monday, where rescue efforts are ongoing.
Here's what we know about the incident so far.
Where did the crash happen?
The crash occurred at around 19:45 local time (18:45 GMT) on Sunday, about an hour after one of the trains departed Málaga for Madrid.
The train derailed and crossed over to the opposite track, operator Adif said.
It then collided with an oncoming train travelling from south Madrid to Huelva, which was forced into an embankment running alongside the track, Spain's Transport Minister Óscar Puente said on Sunday. The majority of those killed and injured were in the front carriages of the Huelva-bound train, he added.
What caused the crash?
What caused the train to derail remains unclear. Officials say an investigation has been launched but it is not expected to determine what happened for at least a month.
Puente has described the crash as extremely strange and said all the railway experts consulted by the government are extremely baffled by the accident.
The president of Spain's state-owned rail operator, Renfe, stated he had discarded the possibility that the incident occurred due to excessive speed or human error. He suggested a mechanical fault or an infrastructure issue as more likely causes.
What are the Rescue Operations?
There were around 400 passengers and staff on the two trains, operated by Iryo and Alvia, according to a statement from Renfe. It remains unclear if there are people still trapped inside the carriages, as rescue teams work amidst twisted wreckage.
The problem is that the carriages are twisted, so the metal is twisted with the people inside, said Francisco Carmona, head of firefighters in Córdoba.
Who are the Victims?
The 39 victims have not yet been identified, with authorities confirming that 112 people received medical assistance, 43 of whom remain hospitalized. Four underage individuals are among the injured, with one in intensive care.
Voices of the Survivors
Passengers described the crash as feeling like an earthquake with windows shattering and belongings flying. Journalist Salvador Jimenez recounted the moment as chaotic, with screams for help echoing through the train as it derailed.
Authorities continue to urge the public to stay tuned for updates as investigations proceed, with a community help center established for families of those affected.
