Islamist militants in Iraq have taken control of key border crossings to Jordan and Syria.
ISIS is also believed to have captured four towns in the west of the country.
In the north, reports say the airport in the town of Tal Afar has also fallen to the rebels.
The gains by militants are causing concern in the international community.
Speaking during a visit to Cairo, US Secretary of State John Kerry says the group is a threat to all of the countries in the middle-east region - and beyond: