The Islamic State of Syria and Iraq (ISIS) group is reportedly using tens of thousands of Mosul citizens as "human shields" in their fight against advancing Iraqi forces, the United Nations says.
Iraqi forces are waging a large-scale offensive aimed at retaking Iraq's second-largest city.
The terror group killed more than 200 Wednesday for refusing to obey ISIS orders, a spokeswoman for the UN human rights arm told CNN.
ISIS reportedly executed 42 civilians and 190 former Iraqi security forces.
Here's what we know so far:
* Since October 17, ISIS has taken tens of thousands of men, women and children from the outskirts of Mosul into the city.
* Iraqi security forces reported further progress Friday in their advance from the south of Mosul.
CNN contributed to this report
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