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UN prepares Iraq medics for possible chemical attack in Mosul

Children use a piece of plastic to slide down a slope at the Baharka camp for displaced persons on the outskirts of Irbil, Iraq, Tuesday, Oct. 25, 2016. Nearby Mosul, the largest city controlled by the Islamic State group, is still home to more than 1 million civilians. (AP Photo/Marko Drobnjakovic).
Children use a piece of plastic to slide down a slope at the Baharka camp for displaced persons on the outskirts of Irbil, Iraq, Tuesday, Oct. 25, 2016. Nearby Mosul, the largest city controlled by the Islamic State group, is still home to more than 1 million civilians. (AP Photo/Marko Drobnjakovic).

BAGHDAD – The U.N.’s public health agency said Thursday it has trained 90 Iraqi medics in “mass casualty management,” with a special focus on chemical attacks, as part of its preparations for Iraq’s operation to retake Mosul from the Islamic State group.

The extremist group, which has ruled Iraq’s second largest city for more than two years, is believed to have crude chemical weapons capabilities, and Iraqi forces say they are prepared to encounter them on the battlefield.

READ MORE: ISIS using civilians as human shields amid Mosul offensive

The World Health Organization said Wednesday that of the 700,000 people expected to flee Mosul, some 200,000 will require emergency health services, including more than 90,000 children needing vaccinations and 8,000 pregnant women.

WATCH: Drone footage shows civilians fleeing Mosul with white flags

Click to play video: 'Drone footage captures civilians fleeing with white flags during the Battle for Mosul' Drone footage captures civilians fleeing with white flags during the Battle for Mosul
Drone footage captures civilians fleeing with white flags during the Battle for Mosul – Oct 24, 2016

The operation to retake Mosul began Oct. 17 and is expected to take weeks, if not months. The fighting has not yet reached the city itself, which is home to more than a million people.

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Has Canada’s military mission in Iraq changed? – Oct 27, 2016

Iraq’s special forces said Thursday they have completed their objectives east of Mosul and are waiting on other forces to advance from the south in order to further isolate the city before moving in.

“The operation has not been stopped and is proceeding as planned,” Brig. Gen. Haider Fadhil said.

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Iraqi forces have been battling IS militants around the town of Shura, some 25 miles (40 kilometres) south of Mosul, in recent days. Iraqi officials have said the offensive is proceeding according to plan and that some operations are ahead of schedule.

WATCH: Battle for Mosul enters its second week

Click to play video: 'Battle for Mosul enters it’s second week amidst heavy artillery bombardment' Battle for Mosul enters it’s second week amidst heavy artillery bombardment
Battle for Mosul enters it’s second week amidst heavy artillery bombardment – Oct 24, 2016

The Mosul offensive is the largest Iraqi military operation since the 2003 U.S.-led invasion, and involves more than 25,000 Iraqi soldiers, Federal Police, Kurdish forces, Sunni tribal fighters and state-sanctioned Shiite militias.

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Fighting units are approaching the city from the north, east and south, and the U.S.-led coalition is carrying out airstrikes and providing ground support.

The International Organization for Migration says around 9,000 people have fled so far, but aid groups are preparing to receive 200,000 displaced people in the coming weeks and fear many more could flee before the operation is over.

WATCH: Iraq forces shell Islamic State near Mosul as fighting enters second week

The United Nations’ refugee agency is shipping tents, blankets and other aid from the United Arab Emirates to northern Iraq to help those affected by the military campaign. The shipment, which left Dubai’s International Humanitarian City on Thursday, is expected to reach those affected as soon as Friday.

Soliman Mohamed Daud, a senior UNHCR supply officer, told The Associated Press that 7,000 units of the relief aid will be sent to northern Iraq. The UAE shipment that left Thursday includes some 1,500 kits.

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