Police in Spain said a white van slammed into a crowd of pedestrians Thursday in Barcelona's historic Las Ramblas district causing an unknown amount of casualties.
Police cordoned off the popular street, ordering stores and nearby Metro and train stations to close. Authorities have asked people to stay away from the area so as not to get in the way of emergency services.
Las Ramblas, a street of stalls and shops that cuts through the center of Barcelona, is one of the city's top tourist destinations.
Prominent lawmakers, politicians and athletes have reacted to the latest terror attack.
The United States condemns the terror attack in Barcelona, Spain, and will do whatever is necessary to help. Be tough & strong, we love you!
-- Donald J. Trump (@realDonaldTrump) August 17, 2017
Thoughts and prayers to #Barcelona
-- Melania Trump (@FLOTUS) August 17, 2017
Deeply saddened by the attack on our city. All our thoughts are with the victims, their families and with the people of Barcelona.
-- FC Barcelona (@FCBarcelona) August 17, 2017
Spain's Prime Minister Mariano Rajoy Brey tweeted that he was in contact with officials at the scene of the attack.
En contacto con todas las administraciones. Prioridad: atender heridos en Las Ramblas y facilitar la labor de las Fuerzas de Seguridad. MR
-- Mariano Rajoy Brey (@marianorajoy) August 17, 2017
Spanish actor Antonio Banderas tweeted: "Fused in a hug with #Barcelona
Fundidos en un abrazo con #Barcelona.
-- Antonio Banderas (@antoniobanderas) August 17, 2017