The U.N. says Rwanda-backed rebels are expanding their presence in eastern Congo after capturing the region's major city.

The United Nations expressed deep concern at reports of M23 rebels and Rwandan troops advancing south towards the Congolese city of Bukavu on Thursday, as the militants sought also to assert their control over east Congo's largest city Goma.

M23 rebels on patrol in Goma, eastern Congo, which has reserves of minerals that are needed by the world’s electronics giants © AFP/ Rwanda’s stealth occupation of eastern Congo on x (opens in a new w

Rwanda-backed rebels who have captured eastern Congo’s largest city say they plan to take their rebellion to the capital and seek to gain political power

Rwanda-backed rebels claimed they captured eastern Congo’s largest city, Goma, early Monday, as the United Nations described a “mass panic” among its 2 million people and Congo’s government said the rebel advance was a “declaration of war.