(TNND) — A fire broke out at a California power plant facility, forcing nearby residents to evacuate their homes on Thursday night, officials said.

Moss Landing is one of the world’s largest battery storage plants and is located in Northern California. The fire caused flames of toxic smoke to expand into the air making it dangerous for people in the area.

Fire crews were not engaging with the fire but rather waiting for it to burn out on its own, The Mercury News reported.

This fire incident is not related to the wildfires in Los Angeles, according to Sheriff’s Commander Andres Rosas to CNN.

The Moss Landing Power Plant, located about 77 miles south of San Francisco is owned by Texas-based company, Vistra Energy. It contains lithium batteries, that if they go up in flames, become extremely difficult to put out.

The cause of the fire is unclear. In a statement, Vistra said that everyone at the site was evacuated safely after the fire was detected. The incident will soon be investigated.

“Our top priority is safety of the community and our personnel, and Vistra deeply appreciates the continued assistance of our local emergency responders,” Jenny Lyon, a spokesperson for Vistra, said in a statement.

It is not yet determined when evacuation orders will be lifted and when residents may return to their homes.