Reuters:

A senior U.N. envoy said on Wednesday that far more people had died in Sudan’s Darfur region than the 70,000 previously estimated and chastised African nations for not sending enough peacekeepers.
Jan Egeland, the U.N. humanitarian coordinator, who just visited Darfur and other parts of Sudan, said it was impossible to estimate the number of deaths from killings or disease because “it is where we are not that there are attacks.”
Egeland said the old figure of 70,000 dead from last March to the late summer was unhelpful. “Is it three times that? Is it five times that? I don’t know but it is several times the number of the 70,000 that have died altogether,” he said.