ISIS victims have spoken out after fears of chemical attacks near Mosul are continuing to rise.

One resident said his five-year-old daughter's legs, arms and neck is blackened and is in severe pain after a rocket fired by the ISIS landed and exploding in her neighbour's garden while she was playing out.

Her father, Abdallah Sultan said the rocket emitted a toxic gas.

Around a month after the blast, a strong burning smell still pervades the air and stings the nose. The wall next door is black and all the plants in a small vegetable patch have died. Part of the rocket, which the families avoid touching, is left on the ground. The rest has been removed by rescue workers.

"We don't know what the substance in the warhead was. All we know is that it made Doaa break out in blisters all over her body, and she's not got better," 33-year-old Sultan said.

She was a victim of what appears to have been the fourth chemical weapons attack launched by ISIS during September and October against civilians in the town of Qayyara in northern Iraq. Rights workers have so far documented at least three others.

The United Nations says ISIS is stockpiling ammonia and sulphur in civilian areas and fears it intends to carry out more chemical attacks as Iraqi forces, backed by U.S. air power, battle the terrorists in an effort to drive them out of Mosul, their last major stronghold in Iraq .

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