The Rwanda-backed armed group M23 vowed Thursday to "continue the march of liberation" to the DR Congo capital Kinshasa, as its fighters made further advances in the mineral-rich east of the country.

Anti-Rwandan protests broke out in Kinshasa Tuesday morning, as rebels battled Congolese forces in the key eastern city of Goma.

French Foreign Minister Jean-Noël Barrot has arrived in Congo's capital Kinshasa, an official at the presidency said on Thursday, as Rwanda-backed rebels consolidated control of Goma in the east of the African country.

The fresh offensive by the M23 rebels and Rwanda forces in Eastern Democratic Republic of the Congo (DRC) coincides with the first anniversary of the Memorandum of Understanding (MOU) signed between the European Union (EU) and Rwanda to cooperate on the supply of "critical minerals.

Rioters stormed embassies and started fires in Democratic Republic of Congo's capital Kinshasa, drawing tear gas from police, in an eruption of protests over a Rwandan-backed rebel offensive in the east.

Police in Democratic Republic of Congo (DRC) fired tear gas at protesters in the capital, Kinshasa, on Tuesday, after embassies were attacked over the conflict in the country's east.

U.S. Secretary of State Marco Rubio called for a urgent cease-fire in the conflict in eastern Democratic Republic of Congo saying Washington was "deeply troubled" by a recent escalation in the fighting.

Local sources said Kigali-backed fighters were advancing on a new front and had seized two districts in South Kivu province, after the rebel group’s capture of most of Goma, the capital of North Kivu.

President Paul Kagame said Rwanda was ready for "confrontation" as he rejected criticism over his backing for M23 rebels who were pushing south on Thursday in eastern Democratic Republic of Congo after capturing the major city of Goma.

A total of 288 European mercenaries who had been fighting alongside the Congolese army coalition (FARDC) arrived in Rwanda on Wednesday afternoon.

Rebels backed by Rwanda captured more towns in eastern Congo as fighters moved beyond the key city of Goma in an apparent attempt to expand their control in the conflict-battered region