U.S. President Donald Trump said Friday that Washington will not pursue negotiations with Iran to end the war, insisting instead that Tehran must offer an “unconditional surrender.”

Writing on his platform Truth Social, on the seventh day of the conflict, Trump said that after the war ends and a "great and acceptable" leadership is chosen in Tehran, the United States and its allies would begin rebuilding the country.

He suggested Iran could become "economically bigger, better, and stronger than ever before."

On Thursday, Trump had said that Iran’s air defences and missile capabilities had already been largely destroyed.

"Their anti aircraft weapons are gone. So they have no air force. They have no air defence. All of their airplanes are gone," he said in Washington.