With no suspects or motive announced, the FBI is joining the investigation into power outages in a North Carolina county believed to have been caused by “intentional” and “targeted” attacks on substations that left around 40,000 customers in the dark Saturday night, prompting a curfew and emergency declaration.

(SOURCE) https://www.cnn.com/2022/12/05/us/power-outage-moore-county-investigation-monday/index.html