UN Secretary-general Ban Ki-Moon called has for urgent talks to avert civil war in Burundi as Bujumbura defended the actions of its security forces and rejected any idea of stationing foreign troops on its soil. Ban said he would send his special adviser Jamal Benomar to the region for talks with the Burundi government, other countries and the African union on ways to defuse a crisis that has spurred fears of a return to full-scale ethnic conflict.