Evidence of the presence of other groups, largely produced by the testimony of survivors of the attack, was credible, but could not be independently confirmed by the United Nations team in its subsequent investigations.
有关其他团体也有参与的证据是可信的，这些证据主要由袭击事件的生还者提供，但是联合国调查组在后来的调查中未能独立地予以确定。