Los Angeles County said Wednesday that it's suing Southern California Edison, alleging the utility’s equipment sparked January’s Eaton Fire, which destroyed more than 9,400 structures and killed 17 people in the Altadena area.

The county says electrical equipment owned by the electric utility is to blame for the blaze that killed 17 people and destroyed 9,400 buildings.

Fire investigators have not found Edison responsible for the Eaton Fire — but mounting lawsuits heighten concerns about its potential liability for the deadliest and most destructive blaze since the state created a fund to prevent wildfires from bankrupting utilities.