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.

A video released as part of an ongoing lawsuit against Southern California Edison, the electrical utility for Los Angeles, appears to show what a law firm says is the start of the deadly Eaton Fire.

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

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

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.

Attorneys who claim malfunctioning Southern California Edison equipment caused the deadly, destructive Eaton Fire on Monday released video they believe shows sparks from Edison power lines igniting the blaze.