The United Nations and regional governments are deploying additional soldiers to Ivory Coast's border area with Liberia after deadly attacks on villages in the densely forested West African region, a military official said. Some 23 people were killed in the latest raid by suspected mercenaries from Liberia last week in Ivory Coast's southwest, an area with a history of conflict between indigenous tribes and migrant farmers inflamed by a recent civil war. "We have sent reinforcements to the area and (the United Nations mission in Ivory Coast) UNOCI has also added patrols to put an end to these attacks," Ivorian army captain Alla Kouakou told Reuters by telephone late on Saturday. He said the governments of Guinea, Liberia, and Sierra Leone would also add forces.