Islamic State group has launched two chemical attacks, killing a three-year-old girl and wounding some 600 people near the northern city of Kirkuk in Iraq.

Security and hospital officials say the latest attack took place early today in the small town of Taza, which was struck by a barrage of rockets carrying chemicals three days earlier.

Helmi Hamdi, a nurse at the Taza hospital, says the wounded are suffering from infected burns, suffocation and dehydration.

Eight people were transferred to Baghdad for treatment.