Authorities in Central African Republic say a Ugandan rebel commander who recently surrendered is now in the capital and awaiting extradition to face international war crimes charges.

Dominic Ongwen is expected to be transferred to the International Criminal Court later Saturday, according to Ghislain Grenzengue, Central African Republic's chief prosecutor.

Ongwen surrendered in a remote part of the country's east near Uganda. He was a longtime commander within the Lord's Resistance Army, a fearsome group blamed for slaughtering countless civilians and forcing others into slave labor.

The court's warrant of arrest for Ongwen lists seven counts of alleged individual criminal responsibility including crimes against humanity, enslavement, murder and inhumane acts of inflicting serious bodily injury.