Possibly a light pollution from industrial greenhouse. There is one near Wrocław (Poland) and tourists are constantly asking "what is that spooky light in the sky?".
https://miejscawewroclawiu.pl/wp-content/uploads/2020/03/IMG...
https://miejscawewroclawiu.pl/wp-content/uploads/2020/03/IMG...
There’s a cannabis greenhouse elsewhere in my region that creates a pillar of white light. It’s a completely surreal scene. Also pretty awful light pollution.