Hadi al-Amiri also said Islamic State leader Abu Bakr al-Baghdadi was alive and in Iraq, despite reports that he had been wounded.
"Many of its leadership have been killed but one should know that Daesh (IS) is still strong," said Amiri, leader of the Badr Organization whose armed wing has been fighting alongside Iraqi security forces to recapture territory seized by IS.
"Their attacks are still daring and swift and their morale is high. They still have money and weapons." Amiri delivered a damning assessment of the air strikes that the United States and its allies have been conducting against Islamic State for almost 18 months.