MILLIONS of people in Sudan's Darfur region are at risk of dying of hunger after a decision by the Sudanese government to prohibit aid deliveries through Chad, an advocacy group for internally displaced people said. The order, a digital copy of which Reuters has obtained, effectively shuts down a crucial route for supplies to the vast Darfur region, controlled by the Rapid Support Forces (RSF), the army's rivals in a 10-month civil war. "The failure to receive urgent humanitarian aid puts millions of displaced people in Darfur at risk of death from hunger, which makes denying food and relief to…