The Rwanda-backed rebel group M23 has denied involvement in recent massacres in eastern Congo. A report by Human Rights Watch, released Wednesday, accused M23 of killing over 140 civilians.

Rwanda-backed M23 rebels killed at least 140 people in eastern Democratic Republic of Congo in July, Human Rights Watch said in a report on Wednesday that highlighted how violence remains elevated despite U.

Despite a peace process, attacks were carried out in more than a dozen villages last month, Human Rights Watch says.