United Nations is investigating the alleged killing of dozens of people in the Central African Republic last week, by Central African Republic forces and mercenaries with the Russian private military company Wagner.

More than 30 civilians were reportedly killed, some by stray bullets in January operation near the town of Bria, that targeted the Union for Peace rebel group.

UN spokesman Stephane Dujarric said, the UN mission in the country received reports of the incident involving CAR troops and other security personnel.

Dujarric said they are currently confirming the number of casualties and displacement.

A military source in the country suggested the fighting could still be ongoing.