What human rights violations has the UN reported in Congo involving the M23 armed group?

The UN has reported that the M23 armed group has committed grave human rights violations in Congo, specifically executing children. According to the UN rights office, the situation in eastern Democratic Republic of Congo (DRC) is deteriorating rapidly, resulting in serious human rights violations and abuses. The UN has issued warnings about the worsening conditions in the region as the crisis deepens. These developments have raised international concerns about the protection of civilians, especially children, in the conflict-affected areas of eastern Congo.