The Rwandan-backed M23 group on Friday advanced south after seizing the biggest city in mineral-rich eastern DR Congo, in violence that according to the UN has killed at least 700 people in less than a week.

Rwandan-backed M23 rebels asserted their control over east Congo's largest city Goma on Thursday by calling on residents to resume normal life, even as the group clashed with Congolese troops as they tried to take more territory.

Rwanda is illegally occupying the Democratic Republic of Congo and attempting to orchestrate regime change, the country's foreign minister has told the BBC. Thérèse Kayikwamba Wagner said the world had allowed Rwandan President Paul Kagame decades of impunity and failure to hold him accountable for violating international law.