Army mutineers in eastern Democratic Republic Congo loyal to warlord Bosco Ntaganda, known as "The Terminator", have replaced him as their leader.
A statement said the fighters had formed an armed group called M23 to be headed by Col Sultani Makenga, who also recently defected from the army.
Analysts say the move could be a way of protecting Gen Ntaganda, who is wanted by the ICC for alleged war crimes.