A train has derailed near Barcelona - killing at least one and injuring 37 in a horrifying crash just days after a high-speed smash left at least 42 dead.
The R4 commuter train, which was between Sant Sadurní d'Anoia and Gelida stations, collided with the wall at 9pm local time on Tuesday.
The first carriage, which was carrying most of those who were injured, reportedly bore the brunt of the damage.
Local media reported that the wall had apparently fallen due to heavy rains in the region.
Local police said that the person who died was the train driver. Of the 37 who were injured, five were seriously hurt.
Catalan emergency services said their teams were treating injured people still at the scene in the hours after the carriage came off the track. The authorities did not provide further details about the condition of those hurt in the crash.
Dozens of ambulances and fire engines were sent to the scene of the incident to help victims of the crash and clear the rail.
Local firefighters said they had established a 'safety zone' and have 'shored up the retaining wall and the train to stabilise them', adding that they are working to get those injured in the crash out as soon as possible.
The nearby Moisès Broggi, Bellvitge, and Vilafranca Hospitals are making preparations to receive the injured.
Emergency crews respond after a commuter train derailed when a retaining wall collapsed onto the tracks in Gelida, near Barcelona, Spain, on Tuesaday
Firemen work at the crash site
One person - the train driver - has died after the smash
Local media reported that heavy rainfall hit the Catalonia region in recent days, which came from a powerful easterly storm that peaked yesterday.
Silvia Paneque, Spain's minister of territory, said the whole Rodalies commuter rail service would be suspended until engineers can confirm its safety.
She added that the section affected by the crash would remain suspended for longer so investigators can carry out a 'thorough analysis'.
It comes just days after the deadly high-speed rail crash that killed 42, which occurred in Adamuz, near the city of Córdoba, at around 6.40pm local time on Sunday.
Sunday's tragedy saw one train derail and cross over onto another track, with a second ploughing into the wreckage.
The tail end of a train carrying some 300 passengers on the route from Malaga to the capital, Madrid, went off the rails at 7.45pm.
An incoming train, which was travelling from Madrid to Huelva and carrying nearly 200 passengers, slammed into the derailed vehicle.
The second train took the brunt of the impact after the collision knocked its first two carriages off the track and sent them plummeting down a 13ft slope.
Officials said that it appeared the largest number of the deaths occurred in those carriages.
At the moment of the collisions, both trains were travelling at over 120mph, according to the Spanish Transport Ministry.
Local firefighters said they had established a 'safety zone' and have 'shored up the retaining wall and the train to stabilise them'
At least 42 people are confirmed dead following a high-speed train collision in southern Spain on Sunday
Officials said some passengers were catapulted through windows, their bodies found hundreds of yards from the crash site
Both trains were travelling well under the speed limit of 155mph with one going at 127mph and the other at 130mph, according to the president of Spain's national state-owned railway company Alvaro Fernandez.
He also said that 'human error could be ruled out.'
A source told Reuters on Monday night that a broken joint had been found on the track but officials are yet to confirm this.
The accident shook a nation that leads Europe in high-speed train mileage and takes pride in a network that is considered at the cutting edge of rail transport.
Spain's King Felipe and Queen Letizia visited the scene of the accident, where they greeted emergency workers as well as some local residents who helped in the initial stages of the rescue.
Afterwards, they went to hospital in Cordoba where many of the injured remain under care.
'We are all responsible for not looking away when the debris of a catastrophe is being cleared away,' said Letizia to reporters after the visit.
