The head of the U.N. children's agency says the war in Sudan has created the world’s largest and most devastating humanitarian crisis, with over 30 million people needing aid this year – 16 million of them children.

Sudan is now the largest and most devastating humanitarian crisis in the world, nearly two years into a conflict that has pushed the country to the brink of collapse, a UN official has said.

The United Nations says that nearly two-thirds of Sudan's population - more than 30 million people - will need aid this year. "The Rapid Support Forces, the Sudanese Armed Forces, and other parties to the conflict are not only failing to protect civilians – they are actively compounding their suffering,