Rwanda-backed rebels controlling cities in eastern Congo have forcibly closed settlement camps, leading to the displacement of more than 110,000 people in recent days, the U.N. and locals said Tuesday.

The takeover of Bukavu would constitute an unparalleled extension of territory under the M23’s control, as well as a further blow to Kinshasa’s authority in eastern Congo following the collapse of Goma,

Rwandan-backed M23 rebels in the Democratic Republic of Congo threatened on Tuesday to advance on the provincial capital of Bukavu, citing a "dangerously deteriorating" situation, amid renewed skirmishes on the front line.