A law firm suing Southern California Edison released an edited video that it says appears show the start of the deadly Eaton Fire in Altadena.

While investigators are still working to determine the official cause, attorney Jay Edelson alleges this real-time video is the strongest evidence yet, that suggests the Eaton Fire started at an SCE transmission tower.

A video shows arcing at a Southern California Edison tower, then a fire at the tower's base, suggesting the Eaton fire may have been caused by electrical equipment.

High-voltage power lines saw a temporary surge in electrical current in the area where the deadly Eaton Fire is believed to have started, Southern California Edison said.

Edison says current increase "remained within the design limits and operating criteria" for the circuits and "did not trigger system protection on these lines."

Edison International Inc.‘s Southern California utility equipment created a powerful electric arc above Altadena, Calif., that ignited the deadly Eaton fire, a law firm suing the utility says, citing new video footage from a nearby gas station.