The Palisades Fire – the largest blaze – has killed at least five people. The Eaton Fire, above Altadena in northern Los Angeles County, has killed at least six people and burned more than 21 square miles, leaving apocalyptic scenes of destruction.

The Lidia fire, which has burned around 395 acres, has been fully contained as of Saturday morning, according to CAL Fire.

In the case of the Eaton Fire, the investigators are likely to use magnets to help them hunt for the tiny, melted pieces of metal that could have been shed by power lines if they slapped together. But the existence of the metal doesn’t necessarily indicate that’s how the fire started, Nordskog said.