She said only very few Yazidi women have been rescued from the grip of ISIS since the operation to free Mosul began in October.

"I have recently been receiving calls from Yazidi families who need help to rescue their women and girls in ISIS captivity. It's unbearable," Taha said.

She cited the case of one Yazidi mother who told her that her 16-year-old daughter's rescue from ISIS sex slavery costs $15,000, an amount she could not pay. "Yazidi women, even when there is a possibility for them to be rescued, there is no financial support for the work. Unbelievable pain," she said.

"I have asked human rights colleagues in Erbil what the military plan is for assisting the Yazidi population inside Mosul, in the context of the ongoing operation," Taha said. "They said this is a conversation that hasn't occurred yet."

According to local and military sources, tens of thousands of Yazidis remained trapped on Mount Sinjar, suffering mass killings, kidnappings and rape, Christiantoday reported.

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