I think I'll maybe refer you to the Independent International Fact-Finding Mission for the Sudan. This was started as a result of a resolution by the UN Human Rights Council. Canada was a co-sponsor. It's mandated to monitor and investigate human rights violations and violations of international humanitarian law.
They released a report in September. The findings and the evidence is significant with regard to the kinds of actions that you're describing. There have been reports of humanitarian workers being killed.
The report itself found that both SAF and the RSF, and allies, are responsible for large-scale violations, many of which amount to war crimes. This includes things like air strikes, destruction of civilian infrastructure, ethnic-based attacks, rape, SGBV. The list is really quite horrendous in terms of the kinds of violations that they're seeing, including against children in terms of the recruitment of children as child soldiers.
It goes a little bit farther as well with regard to the RSF, and suggests that there are reasonable grounds to suggest that the RSF and its allies committed war crimes and crimes against humanity.