Dozens of children in Darfur have died writhing in agony, allegedly killed by chemical weapons dropped on them by their own government, it is claimed.

Amnesty International say the children are among more than 200 people estimated to have been killed by the banned weapons since January.

Those affected by the "poisonous smoke" vomit blood, struggle to breathe and watch as their skin falls off.

The Sudanese government and rebels have been fighting in Darfur for 13 years.

Yet the conflict and its toll on Darfur's citizens has fallen off the radar since 2004, when warnings of a potential genocide forced the outside world to act.

But a new report into repeated attacks by the Sudanese government against their own people reveals "nothing has changed", according to Tirana Hassan, Amnesty's director of crisis research.

(BBC)