NEW : ` ` It is a complex situation with multiple armed conflicts , '' says UNAMID spokesman . All the inhabitants of the camp , which housed those displaced by conflict , have fled . `` It is a complex situation with multiple armed groups , '' he said , describing the fighters as tribal militia . The violence started two days ago with attacks on an embassy and the Kassab camp , U.N. mission . Millions have been displaced and many killed in nine years of conflict in Darfur .
NEW : ` ` It is a complex situation with multiple armed conflicts , '' says UNAMID spokesman . All the inhabitants of the camp , which housed those displaced by conflict , have fled . The violence started two days ago with attacks on an embassy and the Kassab camp , U.N. mission . Millions have been displaced and many killed in nine years of conflict in Darfur .