It wasn't only confinement. One general appears to have been tortured to death, and many others had to be hospitalized and showed signs of torture.
https://www.hrw.org/news/2018/03/14/saudi-arabia-allegations...
https://www.hrw.org/news/2018/03/14/saudi-arabia-allegations...
https://www.independent.co.uk/news/world/anger-after-saudi-a...
Reeks of corruption at the highest level.
It's obviously only possible because so many western powers rely on their "stable" allies / oil buddies in the middle east.
Yemen alone should be enough reason for every UN nation to sanction SA into submission.
Instead we sell them weapons -.-