The World Health Organisation has issued a fresh warning about the number of lives at risk from the conflict in the Darfur region of Sudan.
Pro-government Arab militias have been carrying out a campaign of ethnic cleansing against African farmers in the western region, and more than a million people have been displaced.
The WHO says that, with the onset of the rainy season, outbreaks of cholera and dysentery could kill 10,000 this month if a massive relief operation is not set up.
Speaking on RTÉ Radio, the Emergency Response Co-ordinator of the aid agency Concern, Ross O'Sullivan, said that the situation had reached crisis point.
