Two young girls run to leave a cordoned off area after a van ploughed into the crowd, killing two persons and injuring several others on the Rambla in Barcelona on August 17, 2017. (Photo by Lluis Gene/AFP Photo)





Shocked pedestrians leave the area after a van ploughed into the crowd, killing 13 persons and injuring over 50 on the Rambla in Barcelona on August 17, 2017. (Photo by Anadolu Agency/Getty Images)





Medics and police tend to injured people near the scene of a terrorist attack in the Las Ramblas area on August 17, 2017 in Barcelona, Spain. Officials say 13 people are confirmed dead and at least 100 injured after a van plowed into people in the Las Ramblas area of the city this afternoon. (Photo by Nicolas Carvalho Ochoa/Getty Images)





Policemen check the identity of people standing with their hands up after a van ploughed into the crowd, killing two persons and injuring several others on the Rambla in Barcelona on August 17, 2017. A driver deliberately rammed a van into a crowd on Barcelona' s most popular street on August 17, 2017 killing at least two people before fleeing to a nearby bar, police said. .Officers in Spain' s second- largest city said the ramming on Las Ramblas was a “terrorist attack” and a police source said one suspect had left the scene and was “holed up in a bar”. The police source said they were hunting for a total of two suspects. (Photo by Josep Lago/AFP Photo)





A woman is comforted as crowds flee from the scene after a white van jumped the sidewalk in the historic Las Ramblas district of Barcelona, Spain, crashing into a summer crowd of residents and tourists Thursday, August 17, 2017. According to witnesses the white van swerved from side to side as it plowed into tourists and residents. (Photo by Giannis Papanikos/AP Photo)





Mossos d'Esquadra Police officers attend injured people after a van crashed into pedestrians in Las Ramblas, downtown Barcelona, Spain, 17 August 2017. According to initial reports a van crashed into a crowd in Barcelona's famous Placa Catalunya square at Las Ramblas area injuring several. Local media report the van driver ran away, metro and train stations were closed. The number of people injured and the reasons behind the incident are not yet known. Official sources have not confirmed that the incident is a terrorist attack. (Photo by David Armengou/EPA)





People run down a street in Barcelona, Spain, Thursday, August 17, 2017. Police in the northern Spanish city of Barcelona say a white van has jumped the sidewalk in the city's historic Las Ramblas district, injuring several people. (Photo by Manu Fernandez/AP Photo)





People speak on their phones as they stand on a street in Barcelona, Spain, Thursday, August 17, 2017. Police in the northern Spanish city of Barcelona say a white van has jumped the sidewalk in the city's historic Las Ramblas district, injuring several people. (Photo by Manu Fernandez/AP Photo)





An injured person is treated in Barcelona, Spain, Thursday, August 17, 2017 after a white van jumped the sidewalk in the historic Las Ramblas district, crashing into a summer crowd of residents and tourists and injuring several people, police said. (Photo by Oriol Duran/AP Photo)





Children, some in tears, are escorted down a road in Barcelona, Spain, Thursday, August 17, 2017. Police in Barcelona say a white van has mounted a sidewalk, struck several people in the city's Las Ramblas district. (Photo by Manu Fernandez/AP Photo)





A person is treated in Barcelona, Spain, Thursday, August 17, 2017 after a white van jumped the sidewalk in the historic Las Ramblas district, crashing into a summer crowd of residents and tourists and injuring several people, police said. (Photo by Oriol Duran/AP Photo)





Mossos d'Esquadra Police officers attend injured people after a van crashed into pedestrians in Las Ramblas, downtown Barcelona, Spain, 17 August 2017. (Photo by David Armengou/EPA/Rex Features/Shutterstock)





Mossos d'Esquadra Police officers and emergency service workers move an injured after a van crashes into pedestrians in Las Ramblas, downtown Barcelona, Spain, 17 August 2017. (Photo by Quique Garcia/EPA/Rex Features/Shutterstock)





Injured people react after a van crashed into pedestrians in Las Ramblas, downtown Barcelona, Spain, 17 August 2017. (Photo by David Armengou/EPA/Rex Features/Shutterstock)





People move away from the area after a van plowed into the crowd, injuring several people in Barcelona, Spain on August 17, 2017. (Photo by Albert Llop/Anadolu Agency/Getty Images)





A woman cries as she phones after a van ploughed into the crowd, killing one person and injuring several others on the Rambla in Barcelona on August 17, 2017. Police in Barcelona said they were dealing with a “terrorist attack” after a vehicle ploughed into a crowd of pedestrians on the city's famous Las Ramblas boulevard on August 17, 2017. Police were clearing the area after the incident, which has left a number of people injured. (Photo by Pau Barrena/AFP Photo)





People react as they leave a cordoned off area after a van ploughed into the crowd, killing two persons and injuring several others on the Rambla in Barcelona on August 17, 2017. A driver deliberately rammed a van into a crowd on Barcelona's most popular street on August 17, 2017 killing at least two people before fleeing to a nearby bar, police said.
Officers in Spain's second-largest city said the ramming on Las Ramblas was a “terrorist attack” and a police source said one suspect had left the scene and was “holed up in a bar”. The police source said they were hunting for a total of two suspects. (Photo by Josep Lago/AFP Photo)





People look toward the scene of a terrorist attack in the Las Ramblas area on August 17, 2017 in Barcelona, Spain. Officials say 13 people are confirmed dead and at least 50 injured after a van plowed into people in the Las Ramblas area of the city. (Photo by David Ramos/Getty Images)





A damaged van, believed to be the one used in the attack, is surrounded by police officers in the Las Ramblas area on August 17, 2017 in Barcelona, Spain. Officials say 13 people are confirmed dead and at least 50 injured after a van plowed into people in the Las Ramblas area of the city. (Photo by David Ramos/Getty Images)





Mossos d'Esquadra Police officers and emergency service workers move an injured man, after a van crashes into pedestrians in Las Ramblas, downtown Barcelona, Spain, 17 August 2017. According to initial reports a van crashed into a crowd in Barcelona's famous Placa Catalunya square at Las Ramblas area injuring several. Local media report the van driver ran away, metro and train stations were closed. The number of people injured and the reasons behind the incident are not yet known. Official sources have not confirmed that the incident is a terrorist attack. (Photo by Quique Garcia/EPA)





A police officer gestures as he blocks a street in Barcelona, Spain, Thursday, August 17, 2017. Police in the northern Spanish city of Barcelona say a white van has jumped the sidewalk in the city's historic Las Ramblas district, injuring several people. (Photo by Manu Fernandez/AP Photo)





Injured people are treated in Barcelona, Spain, Thursday, August 17, 2017 after a white van jumped the sidewalk in the historic Las Ramblas district, crashing into a summer crowd of residents and tourists and injuring several people, police said. (Photo by Oriol Duran/AP Photo)





A woman cries at the area after a van plowed into the crowd, injuring several people in Barcelona, Spain on August 17, 2017. (Photo by Gorka Leiza/Anadolu Agency/Getty Images)





People leave a cordoned off area after a van ploughed into the crowd, killing one person and injuring several others on the Rambla in Barcelona on August 17, 2017. Police in Barcelona said they were dealing with a “terrorist attack” after a vehicle ploughed into a crowd of pedestrians on the city's famous Las Ramblas boulevard on August 17, 2017. Police were clearing the area after the incident, which has left a number of people injured. (Photo by Pau Barrena/AFP Photo)





People phone to relatives or friends after a van ploughed into the crowd, killing one person and injuring several others on the Rambla in Barcelona on August 17, 2017. (Photo by Pau Barrena/AFP Photo)