At least ten people were killed in a militia attack on a refugee camp in north-eastern Congo, according to authorities.

Early Thursday morning, militias from the Cooperative for Development of the Congo (CODECO) attacked the refugee camp in Ituri province.

At the time, there were a few hundred displaced people in the camp.

On a patrol, UN soldiers discovered several mass graves in the same region on Wednesday, according to the UN.

Deputy UN spokesman Farhan Haq said at least 49 victims were found in two villages in Ituri on the border with Uganda, including 12 women and children.

According to the UN, there were reports of militia attacks in the region over the weekend.

Haq called for an investigation into the incidents.

The perpetrators should be held accountable.

Eastern Congo is one of the most dangerous regions in the world.

According to the US, around 130 different armed groups are said to be active there;

many of them are concerned with controlling the valuable natural resources.

The security situation in eastern Congo has recently deteriorated again.

According to the UN peacekeeping mission Monusco, at least 195 civilians have been killed and 68 injured and 84 kidnapped in several attacks since December.

The number of internally displaced people in Ituri province now totals more than 1.5 million.