Democratic Republic of Congo's M23 rebels are moving south towards Bukavu, the capital of South Kivu province, in what appears to be an attempt to expand their area of control in the country's east after capturing the city of Goma.
The latest advances are part of a major escalation of a decades-old conflict over power, identity and resources that has killed hundreds of thousands of people and displaced more than 1 million since its recent resurgence.
WHAT IS HAPPENING IN GOMA?
After entering Goma on Monday night, the rebels faced pockets of resistance, particularly around strategic areas including the airport. They took control of the airport by Tuesday evening, and hundreds of government troops and allied militia laid down their weapons.
By Wednesday morning, the rebels were in control of the devastated city, where some corpses could still be seen in the streets. Corneille Nangaa, leader of the Congo River Alliance (AFC), which includes Democratic Republic of Congo's M23 rebels, told Reuters on Tuesday that they plan to govern Goma.
WHO ARE M23?
M23, which refers to the March 23, 2009, accord that ended a previous Tutsi-led revolt in eastern Congo, is the latest group of ethnic Tutsi-led insurgents to take up arms against Congolese forces. It launched the current rebellion in 2022.
The group has accused the government of Congo of not living up to the peace deal and fully integrating Congolese Tutsis into the army and administration.
It also vows to defend Tutsi interests, particularly against ethnic Hutu militias such as the Democratic Forces for the Liberation of Rwanda (FDLR), founded by Hutus who fled Rwanda after participating in the 1994 genocide of close to 1 million Tutsis and moderate Hutus.
Since the start of 2025, the rebels have seized new territory and reached Goma, the capital of North Kivu province, prompting hundreds of thousands more people to flee their homes.
For more than a year, M23 has controlled Congo's coltan-mining region of Rubaya, generating an estimated $800,000 per month through a production tax, according to the U.N. Coltan is used in the production of smartphones and other equipment.
The group's spread into new territories in recent weeks gives it scope to acquire more mining revenue, analysts say.
WHY IS RWANDA INVOLVED?
The government of Congo, U.N. officials and Western powers including the United States have accused Congo's neighbour Rwanda of fuelling the conflict by deploying thousands of its own troops and heavy weapons on Congolese soil in support of M23.
The accusations are based on a 2022 report by a U.N. Group of Experts that said it had "solid evidence" that Rwandan troops had been fighting alongside the M23 rebels.
Rwanda, which denies backing the rebels, says it has taken what it calls defensive measures and accuses Congo of fighting alongside the FDLR, which has attacked Tutsis in both countries.
Rwanda has a long history of military intervention inside Congo. It and Uganda invaded in 1996 and 1998, claiming they were defending themselves against local militia groups and going after the perpetrators of the 1994 Rwandan genocide.
WHAT ARE UN PEACEKEEPERS AND OTHER FORCES DOING?
U.N. peacekeepers had been supporting the Congolese army's efforts to curb the M23 as part of the United Nations Organization Stabilization Mission in the Democratic Republic of the Congo's (MONUSCO) years-old mandate to counter the many rebel groups active in eastern Congo.
An agreed withdrawal of the mission from Congo has been paused because of the deteriorating security situation. As of December, there were nearly 11,000 peacekeepers on the ground, mostly in the east.
Since the fall of Goma, the mission has evacuated some of its staff and families. Its base has received a large number of people seeking refuge, including government and army officials and various elements including the pro-government Wazalendo militia fighters who have surrendered their arms.
Private military contractors who were hired by the Congolese government to help in the fight against M23 and to train troops have also surrendered.
Rwanda's defence force said 280 of them had surrendered to M23. Reuters reporters saw dozens of Romanian mercenaries who had been hired by Congo crossing into Rwanda -- the start of their journey home, one said
The 16-member Southern African Development Community (SADC), which extended its military mission in Congo late last year to help the Congolese army fight the rebels, remains in place.
Both forces have suffered losses since the start of 2025.
