NEW : U.S. defense secretary : Iraq 's Anbar province in trouble amid ISIS onslaught . The Pentagon says the militants have taken control of a number of towns and cities around Ramadi, including Fallujah, which was once home to many Sunni tribes but is now controlled by ISIS. A key province near Iraq 's capital is in trouble amid an onslaught from ISIS forces , the U.S. defense secretary said Friday , signaling the Islamist extremist group is continuing to flex its muscles and expand its territory -- on several fronts -- despite international airstrikes . U.S. official : ISIS fighters in Anbar province , near Baghdad , may cut off Iraqi forces . Group : ISIS now controls about half of Kobani , a Syrian city near the Turkish border .
NEW : U.S. defense secretary : Iraq 's Anbar province in trouble amid ISIS onslaught . The Pentagon says the militants have taken control of a number of towns and cities around Ramadi, including Fallujah, which was once home to many Sunni tribes but is now controlled by ISIS. U.S. official : ISIS fighters in Anbar province , near Baghdad , may cut off Iraqi forces . Group : ISIS now controls about half of Kobani , a Syrian city near the Turkish border .