GOMA, Congo — A rebel faction spokesman says his armed group has regained control of all of the M23 rebel territory in eastern Congo, and the leader of the other faction has been arrested in Rwanda.

Col. Vianney Kazarama said Saturday that Jean-Marie Runiga was detained by Rwandan authorities after fleeing across the border.

The movement's military leader, Gen. Sultani Makenga, dismissed the political head of the movement, Jean-Marie Runiga, in February. Both men then formed their own factions, which have been fighting since. Kazarama, who is the spokesman for Makenga's faction, says they have taken control of the areas designated for M23 control.

The M23 is largely made of Tutsi fighters who were part of a previous rebellion before being integrated into the army in 2009. They rebelled again in April 2012.