The Britain-based Syrian Observatory for Human Rights said it had confirmed that at least 27 Izadi women had been sold for around $1,000 each to ISIL militants.
The group said it was aware that some 300 Izadi women had been kidnapped and transported to Syria by the militants, but it had so far documented the sale into marriage of 27.
"In recent weeks, some 300 women and girls of the Izadi faith who were abducted in Iraq have been distributed as spoils of war to fighters from the ISIL," a statement said.
The group said it had documented several cases in which the militants then sold the women as brides for $1,000 each to other ISIL members after forcing them to convert to thier own version of Islam which contradicts basic teachings of Islam according to Muslim scholars.
"The Observatory documented at least 27 cases of those being sold into marriage by ISIL members in the northeast of Aleppo province, and parts of Raqa and Hassakeh province," the NGO said.
It added that some Syrian Arabs and Kurds had tried to buy some of the women in a bid to set them free, but they were only being sold to ISIL members.
The Observatory said it was unclear what had happened to the rest of the 300 women, and strongly denounced the "sale of these women who are being treated as though they are objects to buy and sell."
Both UN officials and Izadis fleeing ISIL advances in Iraq have said militants kidnapped women to be sold into forced marriages.
UN religious right monitor Heiner Beilefeldt warned earlier this month of reports of women being executed and kidnapped by ISIL militants.
"We have reports of women being executed and unverified reports that strongly suggest that hundreds of women and children have been kidnapped -- many of the teenagers have been sexually assaulted, and women have been assigned or sold to ISIL militants," she said.
The ISIL terrorists, of whom many are foreign militants, currently control parts of eastern Syria and Iraq’s northern and western regions, where they have been committing heinous crimes in the captured areas, including the mass execution of civilians and Iraqi security forces.
The ISIL terrorists have threatened all communities, including Shias, Sunnis, Kurds, Christians, Izadi Kurds and others, as they continue their radical war in Iraq.
RA/SHI