KIRKUK, IRAQ (CNN) - Dozens of people who were being held captive by Islamic militants in Iraq for months are now free.
Officials in Iraq say Isis released about 250 Yazidis without explanation.
Many of them are children and elderly people.
They are now in the care of Kurdish authorities.
Yazidis are among Iraq's smallest minorities and make up one of the oldest religious communities in the world.
They are of Kurdish descent, and their religion is considered a pre-Islamic sect that draws from several religions, including Christianity and Judaism.