Already in control of eastern Mosul, Iraqi forces have now cut off road access to the west.
It means that ISIL fighters are trapped in what remains of the city that was the group’s biggest stronghold in its cross-border, self-declared caliphate.
Meeting government figures in Baghdad, Brett McGurk, the United States’ envoy to the coalition against so-called Islamic State, said jihadists still in Mosul will die.
“ISIS has now lost over 60 percent of the territory it once held here in Iraq and is losing more every day,” McGurk told reporters in the Iraqi capital on Sunday.
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