- Millions of leaflets are dropped over western Mosul late Saturday
- They tell residents how to prepare and warn ISIS members to surrender
Iraqi forces have had control of the eastern part of the city, which is divided by the Tigris River, since January.
The leaflets say Iraqi forces are making advancements to the western side and "provide guidance and recommendations" for citizens ahead of the offensive, according to a statement from the Iraqi Joint Operations Command (JOC).
The leaflets also warn ISIS members to "lay down their weapons and surrender before they face their inevitable fate at the hands of our heroic forces," the statement said.
As many as 800,000 civilians live in western Mosul, according to the United Nations
. It said UN humanitarian agencies in Iraq are preparing to assist civilians caught in the fighting.