"Biden congratulated the Kurdish militia on a successful operation against the IG in the area of the city of Sinjar, which cut an important terrorist transport channel," the release said.
"They stressed that this pressure (on the IG) will continue in the following weeks and months," the White House said.
The Pentagon said earlier that “the Iraqi Kurdish militia (Peshmerga), with the support of a coalition led by the United States, launched from the air on a strategically important highway between the Islamic State’s terrorist group Raqqa in Syria and Mosul in northern Iraq.”