"The Nobel Committee proved they place politics over peace," White House Director of Communications Steven Cheung said on X.

"President Trump will continue making peace deals, ending wars, and saving lives. He has the heart of a humanitarian, and there will never be anyone like him who can move mountains with the sheer force of his will."

Since returning to the White House for his second term in January, Trump had repeatedly insisted that he deserved the Nobel for his role in resolving numerous conflicts -- a claim observers say is broadly exaggerated.

Trump restated his claim on the eve of the peace prize announcement, saying that his brokering of the first phase of a ceasefire in Gaza this week was the eighth war he had ended.

But he added on Thursday: "Whatever they do is fine. I know this: I didn't do it for that, I did it because I've saved a lot of lives."

Nobel Prize experts in Oslo had insisted in the run-up to Friday's announcement that Trump had no chance, noting that his "America First" policies run counter to the ideals of the Peace Prize as laid out in Alfred Nobel's 1895 will creating the award.