KAGA BANDORO, Central African Republic — Gunmen attacked an evacuation convoy carrying hundreds of Muslims north from Central African Republic's capital on Monday, killing at least two people, according to a witness and an African Union peacekeeping official.The 1,300 Muslims were being escorted from Bangui by foreign peacekeepers to move them from attacks by Christian militia after a spiral of bloodletting that followed Muslim rebels seizing office and then being forced to cede power themselves.Gunmen attacked the 15-truck convoy as the trucks passed through thick vegetation, the witness said. The attackers fired several shots and a female traveler died from head injuries shortly afterwards.A second man also died from gunshot wounds in another part of the convoy.Many thousands have died and nearly a million made homeless in Central Africa despite the presence of French and U.N. peacekeepers.