WASHINGTON (AP) - The Latest on U.S. reaction to the attack in Barcelona, Spain (all times local):

2:25 p.m.

President Donald Trump is condemning what Spanish authorities say is a deadly terrorist attack in Barcelona.

Trump also says in a statement on Twitter that the U.S. will do "whatever is necessary to help." Trump tells Spain: "Be tough & strong, we love you!"

The White House has said Trump - who is on a working vacation at his private golf club in New Jersey - is being updated on developments by chief of staff John Kelly.

Trump's wife, first lady Melania Trump, tweeted her "thoughts and prayers" to Barcelona before the president.

At least one person was killed and many more wounded after a van was driven onto a sidewalk and down a pedestrian zone in Barcelona's historic Las Ramblas district.

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1:55 p.m.

Secretary of State Rex Tillerson is sending condolences to the families and victims of the attack in Barcelona and has offered U.S. assistance to authorities in Spain.

Speaking to reporters at the State Department shortly after a van plowed into a crowd in Barcelona, Tillerson said the incident "has the hallmarks of what appears to be yet another terrorist attack."

He said U.S. diplomats in Spain are currently assisting Americans there and asked those who are safe to notify their friends and families. He said the United States would never relent in tracking down terrorist suspects and holding them to account for their actions.

He said "terrorists around the world should know that the United States and our allies are resolved to find you and bring you to justice."

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