The wreckage of a vehicle used by United Nations peacekeepers killed in an ambush about two weeks ago, is pictured on a road near Sao village, in the western Tai area near Ivory Coast's border with Liberia, June 17, 2012. The area has been hit by a series of attacks in recent weeks, killing at least 22 people, including the seven United Nations peacekeepers. Ivory Coast has said the attacks were carried out by Liberian mercenaries and pro-former president Laurent Gbagbo Ivorian militias who crossed over from Liberia. REUTERS/Luc Gnago (IVORY COAST - Tags: MILITARY POLITICS CONFLICT)