The M23 rebels, supported by Rwanda, attacked the Congolese government forces in South Kivu, defeating a two-day lull in combat.
The heavy fire began on Tuesday morning, three days after the summit of eastern and South African leaders sought an immediate and unconditional ceasefire.
The rebels seized vast lands of Dr. Congo, in the eastern part of the country, including major cities in Goma.
They are now pushing towards Bukabu, the capital of South Kiv. This is another important city in the region.
The latest UN figures show that around 2,900 people have died since early January as a result of hostilities.
Approximately 700,000 others were forced from their homes, and it is estimated that thousands more were injured.
The fight on Tuesday exploded near Ihhushi, a region about 70 km (43 miles) from Bukab and 40 km from the airport in South Kivu, security sources told news agency AFP.
A spokesman for the Congo River Alliance (known as the French acronym AFC), an alliance of rebel groups, including the M23, suggested that the fighter could fight Bucabu.
Lawrence Cannuca responded to arrests by Congolese authorities of 84 Army officials for crimes including killing criminals, including killing civilians near Bucabu.
Meanwhile, reports say hundreds of refugees who fled the ongoing battle have been forced home by the M23.
M23 denied the allegations, but the French broadcaster RFI reported that several large camps for displaced people have been demolished and that their residents were made to return to villages in the conflict zone. did.
Ocha, the UN humanitarian organisation, said the M23 gave people who had evacuated for 72 hours to return to their homes.
Cannuca said such reports were “propaganda” and that evacuated people returned voluntarily. The M23 “doesn’t force anyone to return without a solid security guarantee,” he said.
The M23, made up of ethnic Tutsi people, says they are fighting for the rights of minorities, but Dr. Congo’s government is seeking rebels to rule the vast mineral wealth of the eastern region. They say there is.
The Rwandan Tutchi-dominated government, which was charged with Dr. Congo and the United Nations, is an allegation that Kigali has permanently denied.
However, official responses have recently changed, with government spokespersons saying fighting near the border is a security threat.
