Rwanda-backed rebels aiming to gain power have already captured Goma, a key city in eastern DRC. They have vowed to advance to the capital, more than 1,500km away - but have met resistance from the Congolese army and its allies.

President of the Democratic Republic of Congo said on Thursday that his troopers are fighting an insurgence by the Rwandan-backed militant group M23 which recently captured swaths of land in the east.

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.