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.

Southern California Edison has reported a Jan. 7 fault on a power line that was connected miles away from the lines located near the origin of the deadly Eaton Fire that sparked that day.

The utility company maintained that the current increase remained within the design limits and did not trigger system protection on these lines.