California firefighters are still trying to contain at least three major fires in the state.  The Camp Fire,  the largest  of the three fires, has burned through 110,000 acres of land, killing at least 29 people.

There  are reports  that hundreds more people are still missing in Northern California.

The Camp Fire is now one of the deadliest fires in the state's history.

It's also the most destructive on record, having destroyed over 6,000 structures.  The Pacific Gas & Electric Company is working with investigators to figure out the cause of the Camp Fire.

The company told regulators it noticed a line problem near where the fire broke out and observed damage to a transmission tower.

It's unclear if that's what started the fire.

The Camp Fire was 25 percent contained as of Sunday night.

In the southern part of the state, the  Woolsey and Hill Fires  together have burned over 90,000 acres of land northwest of Los Angeles in Ventura County.

At least two people have died in those fires.

Around 300,000 people have been forced to evacuate across the state.

Additional reporting by  Newsy affiliate CNN .