In one town the BBC team visited, at least 80 children had been killed as well as many adults.
Janjaweed militias and government troops attacked Kidinyir throughout the past year, killing huge numbers.
It is now estimated that more than 70,000 people have died in Darfur and massacres are still going on.
...
Sudan's government insists that the killings are the result of tribal chaos in the region. However, African Union observers in Darfur say the government has been arming and directing the Janjaweed militia.
http://news.bbc.co.uk/2/hi/africa/4012311.stmAlso full report at
http://www.bbc.co.uk/newsa/n5ctrl/progs/panorama/latest.ram (but currently unavailable due to capacity problems - it's probably about an hour long video).