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.

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.

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

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.

The latest fighting has heightened an already dire humanitarian crisis in the region, forcing half a million people from their homes since the start of the year.

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.

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.

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

The raging armed conflict in Democratic Republic of Congo (DRC) that has claimed scores of innocent lives is an escalation of the return to the bloodshed that has for years been synonymous with this nation.

The rebel leader whose fighters have captured Goma, the biggest city in eastern Democratic Republic of Congo, has vowed to continue their offensive all the way to the capital, Kinshasa. Corneille Nangaa, who heads an alliance of rebel groups that includes the M23, said their ultimate aim was to topple President Félix Tshisekedi's government.