Officials in the east of the Democratic Republic of Congo say at least 22 people have been killed during a rebel attack on Saturday night in a village near Beni City.
It is thought to have been carried out by the Allied Democratic Forces (ADF).
The Congolese military recently launched an offensive against the rebels but this has prompted more attacks against civilians.
The suspected ADF rebels, armed with machetes and guns, attacked a village called Ntombi on Saturday night.
Local officials say they are still searching for more bodies in the surrounding area of people who had tried to get away.
The rebel group that originated in Uganda over two decades ago and now has no clear political agenda has been attacking many villages in North Kivu province.
Since the Congolese military launched an operation against the rebels at the end of October more than a hundred civilians have been killed.
In neighbouring South Kivu province the UN says the army has detained around 2,000 people in a military camp where conditions are so appalling, some of them have died.