BARCELONA: A white van plowed into a packed summer crowd Thursday in Barcelona’s historic Las Ramblas district, killing some people and sending dozens fleeing. Barcelona police called it a terror attack and local media reported up to 13 dead.

Catalan police tweeted “there are mortal victims and injured from the crash” without specifying any numbers. Spanish media, including Cadena SER radio station and TV3, reported up to 13 dead, while other media had varying death tolls.

Police cordoned off the broad street that is so popular with tourists, ordering stores and nearby Metro and train stations to close. They asked people to stay away from the area so as not to get in the way of emergency services. A helicopter hovered over the scene.

Quoting unnamed police sources, the El Pais newspapers said the two perpetrators of the crash were holed up in a bar in Tallers Street. Armed police ran down the streets and through a market, checking in stores and cafes, presumably in search of them.

In photographs and videos, at least five people could be seen lying on the ground in the streets of the northern Spanish city Thursday afternoon, being helped by police and others. Other video recorded people screaming as they fled the van.

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, pedestrian path in the center of the street but cars can travel on either side.

Keith Fleming, an American who lives in Barcelona, was watching TV in his building just off Las Ramblas when he heard a noise and went out to his balcony.

“I saw women and children just running and they looked terrified,” he said.