Fighting between M23 rebels and peacekeepers in eastern Congo has resulted in at least 13 deaths. The M23 group has gained ground near Goma, prompting an emergency U.N. Security Council meeting. Congo's army, supported by U.N. and allied forces, has repelled M23 offensives. Rwanda is accused of backing M23, which has led to increased tensions and civilian risks. Various peacekeeping forces, including South African and Uruguayan troops, have suffered casualties.