An Iraqi lawmaker says sporadic clashes between Iraqi Kurdish fighters and Islamic State extremists and other logistics problems are delaying the evacuation of the last Yazidis still trapped on Sinjar mountain.

Lawmaker Mahma Khalil, himself a member of Iraq's minority Yazidis, says fighting was still underway Friday near the mountain.

He says that the Kurdish peshmerga fighters delivered a substantial amount of food and supplies to the thousands of Yazidis still trapped on the mountain after opening up a corridor to them on Thursday.

The development was an incremental step in the battle to retake the town of Sinjar, at the foothills of the mountain by the same name, which fell to the Islamic State group in early August.