Rwandan-backed M23 rebels captured the mining town of Nyabibwe in eastern Congo’s South Kivu province, violating a ceasefire they declared earlier this week, according to NBC News. The rebels now advance toward Bukavu, raising fears of further conflict after seizing the city of Goma last week.

Goma remains “under occupation” by Congo’s M23 rebels and the ceasefire they announced has been broken as their forces engage in heavy fighting along the main route to South Kivu’s main city Bukavu.

The M23 rebels took control of a town 100 kilometres (60 miles) from the provincial capital of Bukavu despite a ceasefire.

The Rwanda-backed rebels who captured a major city in eastern Congo have sought to reassure its residents about their safety

GOMA, Democratic Republic of Congo (Reuters) -Rwandan-backed M23 rebels have seized control of a mining town in eastern Democratic Republic of Congo's South Kivu province, eight sources said on Wednesday,