Here is a story on it with slightly more details, no idea if valid:

edit: https://archive.is/JaCwo

Unknown source: https://realrawnews.com/2023/02/marines-catch-fbi-trying-to-sabotage-substation-in-idaho-and-kill-them/

Here is a story on it with slightly more details, no idea if valid:

https://realrawnews.com/2023/02/marines-catch-fbi-trying-to-sabotage-substation-in-idaho-and-kill-them/