According to emergency services, two trains crashed on the outskirts of Barcelona, injuring at least 155 people.
The collision happened at a station in Spain’s northeastern Catalonia province at about 07:50 (06:50 GMT).
The trains collided when one was parked at the station and were moving in the same direction, according to local media.
Police in Catalonia are looking into how the event happened.
About 12 kilometres (7 miles) outside of the city centre, at the Montcada I Reixac – Manresa station, a collision took place.
Reporters on the scene were informed by emergency services representative Joan Carles Gomez that 155 people had been hurt in the incident, with 14 passengers being sent to a nearby hospital for additional care.
He said that the passengers were being inspected to “rule out any fractures” and that there were several bruises and minor head injuries.
When the incident happened, Mr. Gomez claimed that the train was travelling “extremely slowly,” yet passengers who were standing up toppled over and sustained injuries.
According to a regional fire service spokesperson, the moving train struck “the back section” of a station-bound train.
The collision caused a temporary disruption in train travel on numerous lines, according to the regional authorities.
One passenger described the impact as “a terrific blow” and said that “people were shouting” in a statement to the Ser Catalunya source.
The BBC was informed by another passenger that she had saw “people with blood on them, since they had received a laceration from the strike.”
Raquel Sánchez, the Spanish Minister of Transport, said she was closely observing the situation and wished the injured a “speedy recovery.”
Regional officials blamed the recent spate of incidents on the regional railway system in Catalonia on a lack of finance for the industry on the part of the national government.
Pere Aragonès I Garcia, the president of the Catalan regional government, demanded urgent “explanations” into the crash’s causes from both the Renfe rail company and the Spanish government.
Additionally, Laura Borràs, the speaker of the regional assembly, stated that it was “imperative” that the incident not be repeated.
She claimed that “Catalans deserve safe” rail travel in a tweet.