An international criminal court announced it will charge Sudan's President Omar Bashir with genocide for atrocities committed in Darfur.
The news comes just days after new violence had peacekeepers and Christian aid groups considering their future in the region.
Heavily armed fighters recently killed seven UN peacekeepers and wounded 19 others.
It took place in an area controlled by the government backed militia called the janjaweed.
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The recent flair up of violence has been hindering relief efforts in the region.
"Insecurity does hamper our efforts to reach as many as we can," said Joanna Trevor, World Vision Advocacy Director in Darfur. "Really, what we always call for and what we ask people and all parties involved in Sudan is to allow aid agencies to work so that we can safely give lifesaving services across the board."
More than 400,000 Darfurians and several aid workers have been killed in the past five years of fighting.