Humanitarian groups say they hold grave concerns for the safety of around one-and-a-half million people still living in the city.
They have appealed for all sides in the battle to respect human rights.
Grave concerns for civilians within Mosul
Soldiers watch smoke rise from IS positions in Mosul Source: AAP
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Civilians are reportedly being used as human shields in the city of Mosul as Iraqi forces advance on the self-proclaimed Islamic State's last major stronghold in the country.
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