earlier on we spoke to u.n., a spokesperson chris semanic. here's what he told us. >> we had -- it is a patrol that we have from one of our sights to another in south darfur. the patrol was ambushed. extend firefight that went on. and we've lost -- at this moment we know than even of our peacekeepers were killed and at least 17 were injured. these were military and police personnel. that were on this patrol. we'll continue to conduct our work. on average we conduct over 150 patrols a day. these things have happened in the past and will continue to push on. and we'll continue to enforce our mandate here which is marketing protection of the civilian population. >> and we've just received reaction from the u.n. secretary general to that ambush. ban ki-moon says he's outrage by the killing of the peacekeepers calling it a heinous attack. >> in egypt the muslim brotherhood has called for more peaceful protests next week. they want the demand of power to mohamed morsi. meanwhile the prosecutor says an investigation has been launched against the ous