Video from a gas station security camera shows what a new filing in a lawsuit alleges is the start of this month’s deadly Eaton Fire in the Los Angeles area – electrical sparking at a utility transmission tower in the hilly Eaton Canyon area near the Altadena community.

While investigators are still working to determine the official cause, several attorneys allege this real-time video is the strongest evidence yet, that suggests the Eaton Fire started at a Southern California Edison 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.