Congo's Bukavu under threat as M23 rebels warn of intervention

The rebels seized Goma, the largest city in eastern Congo, at the end of January but had paused their march towards the capital of South Kivu province after declaring a unilateral ceasefire that was followed by calls for an immediate and unconditional ceasefire from regional leaders.

They had not made any significant progress since seizing the mining town of Nyabibwe last week.

Heavy shelling was reported along the frontline on Tuesday morning, rebel, military and local sources told Reuters.

Bukavu and the strategic town of Kavumu 35 km to the north, where the airport is located, are still under the control of the Congolese army. Panic has gripped the area since runaway soldiers looted villages and carried out acts of violence against civilians, prompting the arrest of over 80 soldiers.

"The situation in Bukavu is deteriorating dangerously. Our compatriots are continually being killed and pillaged," Lawrence Kanyuka, a spokesperson for a rebel alliance that includes M23, said in a post on X.

"If these crimes persist, we will take our responsibilities to eradicate the threat at its source and protect our people."

Fears of a devastating regional war with armies from regional countries pitted against each other, as seen in previous wars between 1996 and 2003, have been stoked by the rebels' advance and the prospect of a battle for Bukavu.

The Congolese army, supported by allied militia groups and the Burundian army, faces likely opposition from the rebels and Rwandan troops, reported by the United Nations on Thursday to have crossed into South Kivu.

Rwanda has been accused by Congo, the United Nations, and several Western countries of supporting and arming the rebels, allegations that Kigali has denied. Rwanda insists it has taken mostly defensive positions to protect its borders and citizens.

The resurgence of the conflict in eastern Congo has killed thousands since early 2022 and displaced over one million.

The U.N. office for humanitarian affairs said on Tuesday that an uneasy calm had returned to Goma with a gradual restart of activities.

It said thousands of civilians were leaving displacement sites around Goma to head for safe areas after the rebels said on Sunday the sites should be vacated within 72 hours. The rebels later clarified that returns should be voluntary.

The U.N. office added that aid groups have voiced concern that the unplanned dismantling of the displacement sites could lead to the loss of vital humanitarian infrastructure like water facilities and health centres.