"Despite the continued efforts of the Libyan authorities to recover the mass graves in Tarhouna, reports suggest there are still over 200 people missing, a matter which has caused indescribable suffering for their families who have the right to know what happened to their loved ones," said one of the members of mission's members, Mohamed Auajjar.

A militia operated by a group of brothers carried out a campaign of mass execution, kidnapping and torture between 2016 and 2020 in Tarhouna.

The UN mission says satellite imagery has revealed evidence suggesting that there may be as many as 100 more mass graves still to be uncovered.

It has called on the Libyan government that's based in Tripoli to continue the search.