The U.N. Educational, Scientific and Cultural Organization (UNESCO) said Thursday that it is placing five Libyan sites on its list of World Heritage in Danger. The World Heritage Committee noted Libya's "high level of instability" and the presence of armed groups in or near historic sites. Added to the list are the archaeological sites of Cyrene, Leptis Magna, Sabratha, western Libya's rock art sites of Tadrart Acacus that date back millennia, and the oasis Old Town of Ghadames.