The Mosul front is the latest to be opened up in an all-out push on key cities held by ISIS in Iraq and Syria.
Four hundred miles to the south of the Kurdish offensive, hundreds of residents, mostly women and children, fled Falluja Friday as Iraqi soldiers began an attempt to drive ISIS from the city, the Iraqi military said.
Security forces evacuated about 760 people who escaped from the eastern and southeastern regions of Falluja, the military said.
Families fleeing from Falluja used as 'human shields'
Families fleeing from Falluja used as 'human shields' 04:04
The United Nations' refugee agency warned that tens of thousands of people are still caught in the city as the bombardment by the Iraqi military has intensified, putting the estimated 50,000 remaining residents at extreme risk.
Pro-government fighters said they had found tunnels constructed and used by ISIS on the outskirts of the city.