Sounds is the correct word. Always a bit of a problem. Even the UN are reluctant to give more details and the USA appears to want more info. The UN wants an independent investigation to be completed.sounds like it may be a little more than an allegation.
C4 had a UK bloke on who is part of this particular group. Not much more info really. Lack of prima facie evidence mentioned and now a need to cut their aid budget. He pointed out that cutting aid donations now is a direct contravention of one the Hague courts ruling. They also do work in other countries in this region.
Like many things in the news - confusing and may be clearer later.