Iran's top leader rules out cooperation with US against IS

In this picture released by an official website of the office of the Iranian supreme leader, Supreme Leader Ayatollah Ali Khamenei delivers his speech in a ceremony marking 27th death anniversary of founder of the Islamic Republic, Ayatollah Khomeini at his shrine just outside Tehran, Iran, Friday, June 3, 2016. Iran's top leader has ruled out cooperation with America against the Islamic State group, their common enemy in Syria and Iraq. (Office of the Iranian Supreme Leader via AP) (The Associated Press)

In this picture released by an official website of the office of the Iranian supreme leader, Supreme Leader Ayatollah Ali Khamenei waves to the crowd while attending a ceremony marking 27th death anniversary of founder of the Islamic Republic, Ayatollah Khomeini at his shrine just outside Tehran, Iran, Friday, June 3, 2016. Iran's top leader has ruled out cooperation with America against the Islamic State group, their common enemy in Syria and Iraq. (Office of the Iranian Supreme Leader via AP) (The Associated Press)

Iran's top leader has ruled out cooperation with America against the Islamic State group, their common enemy in Syria and Iraq.

Supreme Leader Ayatollah Ali Khamenei says that despite the landmark nuclear deal with world powers, Iran has "many small and big enemies, but foremost among them are America" and Britain.

He spoke at a Tehran ceremony Friday marking the 27th anniversary of the death of Ayatollah Ruhollah Khomeini, the leader of the 1979 Islamic Revolution that brought hard-line clerics to power and ousted the U.S.-backed Shah Mohammad Reza Pahlavi.

Khamenei says any cooperation with the United States would be "against independence" of Iran.

The deal with world powers went into effect this year, easing Tehran's isolation and removing many economic sanctions in exchange for Iran curtailing its nuclear program.