This concerns me a great deal...
As the Russian invasion of Ukraine continues, foreign students attempting to leave the country say they are experiencing racist treatment by Ukrainian security forces and border officials.
www.cnn.com
Nigeria condemns reports that citizens of African countries have been stopped from leaving Ukraine.
www.bbc.com
I am open to this being way off base as well. It is covered in a number of news outlets.
I think that Ukraine is shooting itself in the foot when they don't make sure to build goodwill towards other nations along the way. When a coworker told me this was going on, I had to research it a bit. Looks to be somewhat accurate. I would, at the very least, suggest equal access to leave the nation, but I might go further as to encourage letting foreign students vacate the nation. Treat them well, build good relations with the nations who they really need supporting them.