The list of people unaccounted for in the Camp Fire rose dramatically from 297 to 631 Thursday-and while many of them may be people who failed to contact loved ones after evacuating, authorities fear the death toll is also going to jump.
California authorities collected DNA samples from relatives on Thursday to help identify victims of the western USA state's deadliest-ever wildfire.
Camp Fire has turned the hard-hit town of Paradise into ash and debris and also devastated the nearby communities of Magalia and Concow.
The disaster already ranks among the deadliest USA wildfires since the turn of the last century.
The Butte County Sheriff's Office said late Wednesday that 130 people were missing; on Thursday morning, the list had grown to more than 300.
Brown and Newsom welcomed the president's visit, with the governor suggesting they set aside political differences since it "now is a time to pull together for the people of California".
Three other people have died in southern California in another blaze dubbed the "Woolsey fire". "There might be friends and family here who don't know they left, that they went to another area", she said.
By Thursday evening, the fire was 40 percent contained, the department said.\ The Camp fire was first reported last Thursday morning and soon torched Paradise, a peaceful foothill town, and has destroyed nearly 10,000 structures.
"This fire has changed us in ways I can never explain".
The Pacific Gas and Electric Company (PG&E) soared as much as 45% early Friday after a regulator said he couldn't imagine letting the California utility declare bankruptcy, even as it faces huge liabilities from California's deadliest and most destructive wildfire.
"This is a dynamic list", he told reporters, saying it was compiled from "raw data" that likely included some duplications or multiple spellings of names.
The Camp Fire has burned 148,000 acres and destroyed more than 9,800 homes. "The level of chaos we were dealing with was extraordinary". Numerous missing in the deadly Northern California wildfire are elderly residents in Magalia, a forested town of about 11,000 north of the destroyed town of Paradise.
Last week, Trump sparked controversy when he blamed the wildfires on poor forest management, and threatened to withhold federal payments to the state.
The roster probably includes some who fled the blaze and do not realize they have been reported missing, he said. Six officers opened fire, and the man was pronounced dead at the scene.
In a odd tangent to the ongoing search for victims of the fire, officials announced that law enforcement officers on Thursday had shot and killed a fugitive in a staging area used for fire operations.
Some of Paradise's older residents who had lost their homes were concerned about where they would live. Lisa Almaguer, a spokeswoman for the Butte County Public Health Department, said Thursday in a statement that 21 people being housed at the Chico Neighborhood Church Shelter have tested positive for norovirus, an extremely contagious virus known to spread easily, causing vomiting and diarrhea.
Travis Lee Hogan, of Paradise, comforts his mother, Bridgett Hogan, while they stay at a makeshift evacuation center for people displaced by the Camp Fire in Chico, California, U.S., November 15, 2018.
California Army National Guard members, wearing white jumpsuits, looked for human remains in the burned rubble, among more than 450 rescue workers assigned to the task.