Local Kurdish reports claim that several Yazidi women, who were raped and humiliated by the Islamic State militants, committed suicide by jumping off Mount Singhal.
The ISIS' atrocities against women have been narrated widely, with even United Nations condemning the group for its treatment of women.
Local news agency Rudaw quoted an unnamed woman, who claimed that three of her daughters committed suicide after they were raped by the militants.
"My daughters were calling on people to kill them, but no one wanted to do that. So they jumped from the mountain and ended their bitter life," the mother said.
Another Yazidi refugee claimed that several women, who were raped by the ISIS and were then asked to go back to the mountain, also committed suicide.
"They took the girls by force and raped them, and after they returned they killed themselves," the woman said.
The Sunni-militant group, which attacked the Yazidi areas of Sinjar on 3 August, has been blamed for kidnapping several women and selling them off to its militants.
Some Yazidi men say they had phoned their daughter or wife's phone number, they were tersely asked not to call back by strangers.
Kaliph, an old Yazidi man, told The Guardian that his daughter was sold for $10 by ISIS.
Reports indicate that over 1,000 women have been abducted by the Islamic State, and these women will be sold as sex slaves to the militants.
According to the Washington Post, the militants are distributing the captured Yazidi women in the towns held by Islamic State.
The UN has condemned the "barbaric acts" of sexual violence by Islamic State.
A UN official statement noted that it is concerned by reports of sexual violence against women and teenage girls, belonging to Iraqi minorities. The report highlighted that at least 1,500 Yazidi and Christian women may have been forced into sexual slavery by the ISIS.