U.N. Secretary-General Ban Ki-moon says any attempts to obstruct U.N. operations in Ivory Coast are 'totally unacceptable' and warns that any attacks on U.N. forces in the African nation will be considered attacks on the international community. Ban told a news conference at U.N. headquarters on Friday that people responsible for the loss of civilian lives in post-electoral violence in the African nation will be held accountable as the situation in the country takes 'a dangerous turn.' The U.N. chief is calling on presidential candidate Laurent Gbago to step aside for opposition candidate Alassane Ouattara, whose electoral victory has been accepted by the world. He says attempts by Gbago so stay in power cannot stand. 