ISIS lost 25- 30 pc of Iraq territory: US

The Islamic State group has lost control of "25 to 30" percent of the territory it holds in Iraq after coalition air strikes and an Iraqi offensive, the Pentagon has said .

The radical group took control of large swathes of the north and western parts of the country months ago after an offensive and the collapse of Iraqi military units.

Following months of an air campaign by a US-led coalition and a rallying of Iraqi forces, the Islamic State (ISIS) grip on parts of the country is fading, the Pentagon claims.

The lost territory amounts to some 13,000 to 17,000 square kilometers (5,000 to 6,500 square miles), Warren said.

Since August, coalition aircraft have conducted airstrikes on 3,244 IS targets, 1,879 in Iraq and 1,365 in Syria. The US has carried out about 80 percent of the strikes, according to Pentagon data.

In Syria, ISIS has maintained its influence on the ground, recently losing areas around Kobane, but gaining ground around Homs and Damascus, Warren said.