The United Nations asserted on 28 October that the Islamic State has executed 232 people and taken thousands more to use as human shields against advancing Iraqi forces near Mosul.
A spokeswoman for the UN's human rights arm said that the terror group had carried out the mass killings on 26 October as a punishment for those people who defied its orders, reported CNN.
"On 26 October, the Islamic State executed 42 civilians in Hammam al-Alil, south of Mosul. Also it executed 190 former Iraqi Security Forces for refusing to join them, in the Al Ghazlani base near Mosul," said Ravina Shamdasani, of the Office of the UN High Commissioner for Human Rights.
She further said that since 17 October, the Islamic State has taken "tens of thousands" of men, women and children from the outskirts of Mosul into the city, adding that the UN feared their purpose was to be to used as human shields against the Iraqi forces advance on Mosul.
There have been other reports over the past week of civilians being murdered as ISIS tries to herd people into its last stronghold in Iraq.
Iraqi Security Forces reported further progress Friday in their advance from the south of Mosul, the country's second city.