(reuters) -- U.S. President Donald Trump is expected to announce that the United States recognises al-Quds as the capital of Israel and will move its embassy there, breaking with longtime U.S. policy and potentially stirring unrest.

"That they claim they want to announce Quds as the capital of occupied Palestine is because of their incompetence and failure," Ayatollah Khamenei said, according to his official website.

"On the issue of Palestine, (U.S.) hands are tied and they cannot advance their goals," Ayatollah Khamenei said, saying the Palestinian people would be victorious.

"American government officials have said themselves that we have to start a war in the region to protect the security of the Zionist regime (Israel)," Ayatollah Khamenei said.

There are certain rulers in the region who are "dancing to America's tune" Ayatollah Khamenei said.

"Whatever America wants, they'll work against Islam to accomplish it," he said.

(Photo: khamenei.ir)