The Islamic State group now controls less than seven percent of Iraq, down from the 40 percent it held almost three years ago, a military spokesman said yesterday.
Brig Gen Yahya Rasool, a military spokesman, said the extremist group now controls less than 12,000 square miles (30,000 square kilometres) in Iraq, or 6.8 per cent of the country's territory.
"After they used to control 40 percent, they now control only 6.8 percent of Iraq's territory", said Iraqi Brig.
Months later, the Iraqi security forces backed by tens of thousands of Shiite and Sunni volunteers, known as Hashd Shaabi paramilitary units, and with the air support provided by worldwide coalition led by the United States, the troops managed to recapture most of Iraq's key cities, towns and villages from the IS group.
Two other family members were injured in the strike, which targeted Al-Sikak district in western Mosul on Monday, Lieutenant Yahya Hamid told Anadolu Agency.
The coalition has come under criticism following an air strike in west Mosul last month that took a heavy toll on civilians, a strike it admitted may have been its own.
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The claim comes amid reports that the battle for western Mosul is turning out to be far more hard than the campaign to retake the east.
While Mosul is the centre of operations for ISIS in Iraq, the group also controls Qaim, Tal Afar and Hawija.
At least four civilians were killed Monday in the army-held eastern side of Mosul by a chlorine gas attack by the ISIL terrorist group, according to an Iraqi security source.
Fighting in Iraq's second city has been ongoing since October a year ago, with Iraqi forces backed by Shia militias and coalition air support now fully in control of the eastern part of the city. The push has become bogged down with Iraqi security forces fighting in small streets in the old part of the city.
As a result they are prepared to fight to the last man, using suicide bombers, vehicles packed with explosives, and even human shields to stall the Iraqi advance.
"Once that task is accomplished, the coalition will be here to support our Iraqi partners as they eliminate Daesh from every corner of Iraq", Col. John Dorrian said. "They aren't going anywhere - they will be defeated and the people of Mosul will be free", he said.