DEVELOPING: Several people were injured after a white van rammed into dozens of people in the historic Las Ramblas district of Barcelona Thursday in what local police desribed as a terror attack.
The incident took place on Las Ramblas of Barcelona, the famous main pedestrian walk way that crosses the city. Police described the incident on Twitter as a "massive crash."
In a photograph shown by public broadcaster RTVE, three people were lying on the ground in the street and were apparently being helped by police and others.
"It was real chaos, people started running, screaming. There was a loud bang," eyewitness Ethan Spibey told Sky News.
Catalan emergency services said people should not go to the area around Placa Catalunya, according to Reuters.
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Vídeos de las ramblas10:11 AM - Aug 17, 2017
Witnesses told newspaper El Pais the driver ran over several people on the walk way, and there were people lying on the ground injuures.
El Pais newspaper, citing a police source, said the driver of the van fled the scene after the crash
One witness said the van "has trampled people while crossing the traffic light."
Police cordoned off the broad street and shut down its stores. They asked people to stay away from the area so as not to get in the way of the emergency services. A helicopter hovered over the scene.
Las Ramblas, a street of stalls and shops that cuts through the center of Barcelona, is one of the city's top tourist destinations. People walk down a wide, pedestrianized path in the center of the street, but cars can travel on either side.
The Associated Press contributed to this report.