A ex-rebel leader from the Democratic Republic of Congo has been flown to The Hague to face war crimes charges at the International Criminal Court (ICC).
Mathieu Ngudjolo Chui's militia disarmed and he joined the army
Mathieu Ngudjolo Chui, now a colonel in the Congolese army, was arrested on Wednesday, a court statement said.
He is alleged to have planned a brutal attack by his National Integrationist Front (FNI) fighters on Bogoro village in eastern Ituri region in 2003.
He is the third Congolese warlord to be sent to The Hague.
Some 200 civilians were murdered in the attack on Bogoro on 24 February 2003.
Col Ngudjolo's arrest warrant lists nine counts:
Three counts of crimes against humanity including murder, inhumane acts and sexual slaverySix counts of war crimes including the use of children soldiers.
Prosecutors allege the Bogoro attack - committed together with the Patriotic Resistance Force in Ituri (FRPI) group - was part of a systematic campaign in 2003 directed against Ituri's ethnic Hema people by the majority Lendu community.
Fighting in the gold-rich Ituri region broke out in 1999 and continued until 2003.
The BBC's Mark Doyle says the conflict in Ituri manifests itself as an ethnic war, but its root cause is the criminal mining of the region's gold and other minerals.
An estimated 50,000 people were killed and hundreds of thousands left homeless.
Under a peace deal, several Congolese militias have disarmed and been integrated into the national army.